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<p> <b><font size="4">Graaddagen calculator voor weerstation Boskamp.</font></b></p>
<form name="form1">

<p></p>
<table border="6" bordercolor="GREEN">
	<tbody>
		<tr>
			<td><font face="Arial"> Referentie
			binnentemperatuur: </font><select name="reftemp" class="green">
				<option value="10" style="background-color: rgb(0, 255, 0);">10
				</option>
				<option value="11" style="background-color: rgb(0, 255, 0);">11
				</option>
				<option value="12" style="background-color: rgb(0, 255, 0);">12
				</option>
				<option value="13" style="background-color: rgb(0, 255, 0);">13
				</option>
				<option value="14" style="background-color: rgb(0, 255, 0);">14
				</option>
				<option value="15" style="background-color: rgb(0, 255, 0);">15
				</option>
				<option value="16" style="background-color: rgb(0, 255, 0);">16
				</option>
				<option value="17" style="background-color: rgb(0, 255, 0);">17
				</option>
				<option value="18" style="background-color: rgb(0, 255, 0);"
					selected="selected">18</option>
				<option value="19" style="background-color: rgb(0, 255, 0);">19
				</option>
				<option value="20" style="background-color: rgb(0, 255, 0);">20
				</option>
				<option value="21" style="background-color: rgb(0, 255, 0);">21
				</option>
				<option value="22" style="background-color: rgb(0, 255, 0);">22
				</option>
				<option value="23" style="background-color: rgb(0, 255, 0);">23
				</option>
				<option value="24" style="background-color: rgb(0, 255, 0);">24
				</option>
				<option value="25" style="background-color: rgb(0, 255, 0);">25
				</option>
			</select> <font face="Arial">°C&nbsp; </font>(18<font
				face="Arial"> °C is standaardwaarde).</font></td>
		</tr>
		<tr>
			<td><b><br>
			Begindatum:</b>&nbsp; <select name="begindag" class="green">
				<option value="1" style="background-color: rgb(0, 255, 0);">1
				</option>
				<option value="2" style="background-color: rgb(0, 255, 0);">2
				</option>
				<option value="3" style="background-color: rgb(0, 255, 0);">3
				</option>
				<option value="4" style="background-color: rgb(0, 255, 0);">4
				</option>
				<option value="5" style="background-color: rgb(0, 255, 0);">5
				</option>
				<option value="6" style="background-color: rgb(0, 255, 0);">6
				</option>
				<option value="7" style="background-color: rgb(0, 255, 0);">7
				</option>
				<option value="8" style="background-color: rgb(0, 255, 0);">8
				</option>
				<option value="9" style="background-color: rgb(0, 255, 0);">9
				</option>
				<option value="10" style="background-color: rgb(0, 255, 0);">10
				</option>
				<option value="11" style="background-color: rgb(0, 255, 0);">11
				</option>
				<option value="12" style="background-color: rgb(0, 255, 0);">12
				</option>
				<option value="13" style="background-color: rgb(0, 255, 0);">13
				</option>
				<option value="14" style="background-color: rgb(0, 255, 0);">14
				</option>
				<option value="15" style="background-color: rgb(0, 255, 0);">15
				</option>
				<option value="16" style="background-color: rgb(0, 255, 0);">16
				</option>
				<option value="17" style="background-color: rgb(0, 255, 0);">17
				</option>
				<option value="18" style="background-color: rgb(0, 255, 0);">18
				</option>
				<option value="19" style="background-color: rgb(0, 255, 0);">19
				</option>
				<option value="20" style="background-color: rgb(0, 255, 0);">20
				</option>
				<option value="21" style="background-color: rgb(0, 255, 0);">21
				</option>
				<option value="22" style="background-color: rgb(0, 255, 0);">22
				</option>
				<option value="23" style="background-color: rgb(0, 255, 0);">23
				</option>
				<option value="24" style="background-color: rgb(0, 255, 0);">24
				</option>
				<option value="25" style="background-color: rgb(0, 255, 0);">25
				</option>
				<option value="26" style="background-color: rgb(0, 255, 0);">26
				</option>
				<option value="27" style="background-color: rgb(0, 255, 0);">27
				</option>
				<option value="28" style="background-color: rgb(0, 255, 0);">28
				</option>
				<option value="29" style="background-color: rgb(0, 255, 0);">29
				</option>
				<option value="30" style="background-color: rgb(0, 255, 0);">30
				</option>
				<option value="31" style="background-color: rgb(0, 255, 0);">31
				</option>
			</select> <select name="beginmaand" class="green">
				<option value="0" style="background-color: rgb(0, 255, 0);">Januari
				</option>
				<option value="31" style="background-color: rgb(0, 255, 0);">Februari
				</option>
				<option value="60" style="background-color: rgb(0, 255, 0);">Maart
				</option>
				<option value="91" style="background-color: rgb(0, 255, 0);">April
				</option>
				<option value="121" style="background-color: rgb(0, 255, 0);">Mei
				</option>
				<option value="152" style="background-color: rgb(0, 255, 0);">Juni
				</option>
				<option value="182" style="background-color: rgb(0, 255, 0);">Juli
				</option>
				<option value="213" style="background-color: rgb(0, 255, 0);">Augustus
				</option>
				<option value="244" style="background-color: rgb(0, 255, 0);">September
				</option>
				<option value="274" style="background-color: rgb(0, 255, 0);">Oktober
				</option>
				<option value="305" style="background-color: rgb(0, 255, 0);">November
				</option>
				<option value="335" style="background-color: rgb(0, 255, 0);">December
				</option>
			</select>&nbsp; <select name="beginjaar" class="green">
				<option value="2024" style="background-color: rgb(0, 255, 0);">2024
				</option>
				<option value="2023" style="background-color: rgb(0, 255, 0);">2023
				</option>
				<option value="2022" style="background-color: rgb(0, 255, 0);">2022
				</option>
				<option value="2021" style="background-color: rgb(0, 255, 0);">2021
				</option>
				<option value="2020" style="background-color: rgb(0, 255, 0);">2020
				</option>
				<option value="2019" style="background-color: rgb(0, 255, 0);">2019
				</option>
				<option value="2018" style="background-color: rgb(0, 255, 0);">2018
				</option>
				<option value="2017" style="background-color: rgb(0, 255, 0);">2017
				</option>
				<option value="2016" style="background-color: rgb(0, 255, 0);">2016
				</option>
				<option value="2015" style="background-color: rgb(0, 255, 0);">2015
				</option>
				<option value="2014" style="background-color: rgb(0, 255, 0);">2014
				</option>
				<option value="2013" style="background-color: rgb(0, 255, 0);">2013
				</option>
				<option value="2012" style="background-color: rgb(0, 255, 0);">2012
				</option>
				<option value="2011" style="background-color: rgb(0, 255, 0);">2011
				</option>
				<option value="2010" style="background-color: rgb(0, 255, 0);">2010
				</option>
				<option value="2009" style="background-color: rgb(0, 255, 0);">2009
				</option>
				<option value="2008" style="background-color: rgb(0, 255, 0);">2008
				</option>


			</select>&nbsp; <input value="Toon gegevens van deze dag"
				onclick="begindatum()" type="button" width="150"> <br>
 
			&nbsp;
			<table border="0">
				<tbody>
					<tr>
						<td align="right">De gemiddelde temperatuur was deze dag:</td>
						<td><input name="begintemp" size="6" maxlength="6" value=""
							onfocus="nofocus()" type="text"><font
							face="Arial">°C</font></td>
						<td>&nbsp;&nbsp;&nbsp; <a href="normalewaarden.htm">Normaal</a> is:
						<input name="nbegintemp" size="6" maxlength="6" value=""
							onfocus="nofocus()" type="text"><font
							face="Arial">°C</font> </td>
					</tr>
					<tr>
						<td align="right">Aantal graaddagen deze dag:</td>
						<td><input name="begingraaddag" size="6" maxlength="6"
							value="" onfocus="nofocus()" type="text"></td>
						<td>&nbsp;</td>
					</tr>
					<tr>
						<td align="right">Aantal gewogen graaddagen deze dag:</td>
						<td><input name="begingewogengraaddag" size="6" maxlength="6"
							value="" onfocus="nofocus()" type="text"></td>
						<td>&nbsp;&nbsp;&nbsp; weegfactor: <input name="beginweegfactor" size="6"
							maxlength="6" value="" onfocus="nofocus()" type="text"></td>
					</tr>
				</tbody>
			</table>
 
			</td>
		</tr>
		<tr>
			<td><b><br>
			Einddatum:</b>&nbsp; <select name="einddag" class="green">
				<option value="1" style="background-color: rgb(0, 255, 0);">1
				</option>
				<option value="2" style="background-color: rgb(0, 255, 0);">2
				</option>
				<option value="3" style="background-color: rgb(0, 255, 0);">3
				</option>
				<option value="4" style="background-color: rgb(0, 255, 0);">4
				</option>
				<option value="5" style="background-color: rgb(0, 255, 0);">5
				</option>
				<option value="6" style="background-color: rgb(0, 255, 0);">6
				</option>
				<option value="7" style="background-color: rgb(0, 255, 0);">7
				</option>
				<option value="8" style="background-color: rgb(0, 255, 0);">8
				</option>
				<option value="9" style="background-color: rgb(0, 255, 0);">9
				</option>
				<option value="10" style="background-color: rgb(0, 255, 0);">10
				</option>
				<option value="11" style="background-color: rgb(0, 255, 0);">11
				</option>
				<option value="12" style="background-color: rgb(0, 255, 0);">12
				</option>
				<option value="13" style="background-color: rgb(0, 255, 0);">13
				</option>
				<option value="14" style="background-color: rgb(0, 255, 0);">14
				</option>
				<option value="15" style="background-color: rgb(0, 255, 0);">15
				</option>
				<option value="16" style="background-color: rgb(0, 255, 0);">16
				</option>
				<option value="17" style="background-color: rgb(0, 255, 0);">17
				</option>
				<option value="18" style="background-color: rgb(0, 255, 0);">18
				</option>
				<option value="19" style="background-color: rgb(0, 255, 0);">19
				</option>
				<option value="20" style="background-color: rgb(0, 255, 0);">20
				</option>
				<option value="21" style="background-color: rgb(0, 255, 0);">21
				</option>
				<option value="22" style="background-color: rgb(0, 255, 0);">22
				</option>
				<option value="23" style="background-color: rgb(0, 255, 0);">23
				</option>
				<option value="24" style="background-color: rgb(0, 255, 0);">24
				</option>
				<option value="25" style="background-color: rgb(0, 255, 0);">25
				</option>
				<option value="26" style="background-color: rgb(0, 255, 0);">26
				</option>
				<option value="27" style="background-color: rgb(0, 255, 0);">27
				</option>
				<option value="28" style="background-color: rgb(0, 255, 0);">28
				</option>
				<option value="29" style="background-color: rgb(0, 255, 0);">29
				</option>
				<option value="30" style="background-color: rgb(0, 255, 0);">30
				</option>
				<option value="31" style="background-color: rgb(0, 255, 0);">31
				</option>
  				
			</select> <select name="eindmaand" class="green">
				<option value="0" style="background-color: rgb(0, 255, 0);">Januari
				</option>
				<option value="31" style="background-color: rgb(0, 255, 0);">Februari
				</option>
				<option value="60" style="background-color: rgb(0, 255, 0);">Maart
				</option>
				<option value="91" style="background-color: rgb(0, 255, 0);">April
				</option>
				<option value="121" style="background-color: rgb(0, 255, 0);">Mei
				</option>
				<option value="152" style="background-color: rgb(0, 255, 0);">Juni
				</option>
				<option value="182" style="background-color: rgb(0, 255, 0);">Juli
				</option>
				<option value="213" style="background-color: rgb(0, 255, 0);">Augustus
				</option>
				<option value="244" style="background-color: rgb(0, 255, 0);">September
				</option>
				<option value="274" style="background-color: rgb(0, 255, 0);">Oktober
				</option>
				<option value="305" style="background-color: rgb(0, 255, 0);">November
				</option>
				<option value="335" style="background-color: rgb(0, 255, 0);">December
				</option>
			</select>&nbsp; <select name="eindjaar" class="green">
				<option value="2024" style="background-color: rgb(0, 255, 0);">2024
				</option>
				<option value="2023" style="background-color: rgb(0, 255, 0);">2023
				</option>
				<option value="2022" style="background-color: rgb(0, 255, 0);">2022
				</option>
				<option value="2021" style="background-color: rgb(0, 255, 0);">2021
				</option>
				<option value="2020" style="background-color: rgb(0, 255, 0);">2020
				</option>
				<option value="2019" style="background-color: rgb(0, 255, 0);">2019
				</option>
				<option value="2018" style="background-color: rgb(0, 255, 0);">2018
				</option>
				<option value="2017" style="background-color: rgb(0, 255, 0);">2017
				</option>
				<option value="2016" style="background-color: rgb(0, 255, 0);">2016
				</option>
				<option value="2015" style="background-color: rgb(0, 255, 0);">2015
				</option>
				<option value="2014" style="background-color: rgb(0, 255, 0);">2014
				</option>
				<option value="2013" style="background-color: rgb(0, 255, 0);">2013
				</option>
				<option value="2012" style="background-color: rgb(0, 255, 0);">2012
				</option>
				<option value="2011" style="background-color: rgb(0, 255, 0);">2011
				</option>
				<option value="2010" style="background-color: rgb(0, 255, 0);">2010
				</option>
				<option value="2009" style="background-color: rgb(0, 255, 0);">2009
				</option>
				<option value="2008" style="background-color: rgb(0, 255, 0);">2008
				</option>

			</select>&nbsp; <input value="Toon gegevens van deze dag"
				onclick="einddatum()" type="button" width="150"> <br>
 
			&nbsp;
			<table border="0">
				<tbody>
					<tr>
						<td align="right">De gemiddelde temperatuur was deze dag:</td>
						<td><input name="eindtemp" size="6" maxlength="6" value=""
							onfocus="nofocus()" type="text"><font
							face="Arial">°C</font></td>
						<td>&nbsp;&nbsp;&nbsp; <a href="normalewaarden.htm">Normaal</a> is:
						<input name="neindtemp" size="6" maxlength="6" value=""
							onfocus="nofocus()" type="text"><font
							face="Arial">°C</font></td>
					</tr>
					<tr>
						<td align="right">Aantal graaddagen deze dag:</td>
						<td><input name="eindgraaddag" size="6" maxlength="6"
							value="" onfocus="nofocus()" type="text"></td>
						<td>&nbsp;</td>
					</tr>
					<tr>
						<td align="right">Aantal gewogen graaddagen deze dag:</td>
						<td><input name="eindgewogengraaddag" size="6" maxlength="6"
							value="" onfocus="nofocus()" type="text"></td>
						<td>&nbsp;&nbsp;&nbsp; weegfactor: <input name="eindweegfactor" size="6"
							maxlength="6" value="" onfocus="nofocus()" type="text"></td>
					</tr>
				</tbody>
			</table>
			</td>
		</tr>
		<tr>
			<td>
			<p>&nbsp;<br>
			<input value="Bereken graaddagen over deze periode:"
				onclick="bereken()" type="button" width="150"> begindatum <select
				name="tm" class="yellow">
				<option value="0" style="background-color: rgb(0, 255, 0);">tot
				</option>
				<option value="1" style="background-color: rgb(0, 255, 0);">tot
				en met</option>
			</select> einddatum.</p>
 
			<table border="0">
				<tbody>
					<tr>
						<td align="right">Aantal dagen in deze periode:</td>
						<td><input name="totaaldagen" size="6" maxlength="6" value=""
							onfocus="nofocus()" type="text"></td>
						<td></td>
					</tr>
					<tr>
						<td align="right">Aantal graaddagen in deze periode:</td>
						<td><input name="totaalgraaddagen" size="6" maxlength="6"
							value="" onfocus="nofocus()" type="text"></td>
						<td>&nbsp;&nbsp;&nbsp; <a href="normalewaarden.htm">Normaal</a> is: <input name="ntotaalgraaddagen" size="6" maxlength="6"
							value="" onfocus="nofocus()" type="text"></td>
					</tr>
					<tr>
						<td align="right">Aantal gewogen graaddagen in deze periode:</td>
						<td><input name="totaalgewogengraaddagen" size="6"
							maxlength="6" value="" onfocus="nofocus()" type="text"></td>
						<td>&nbsp;&nbsp;&nbsp; <a href="normalewaarden.htm">Normaal</a> is: <input name="ntotaalgewogengraaddagen" size="6"
							maxlength="6" value="" onfocus="nofocus()" type="text"> </td>
					</tr>
				</tbody>
			</table>
			</td>
		</tr>
	</tbody>
</table>
</form>
<p>Met deze calculator kunt u de graaddagen berekenen voor<br>
een bepaalde datum of voor een bepaalde periode.<br>
De temperatuur gegevens zijn afkomstig van het weerstation Boskamp<br>  <!-- http://www.hetweerinboskamp.nl/voorpagina/climatedataout62017.html -->
(Bron: <a href="http://www.hetweerinboskamp.nl", target="new">www.hetweerinboskamp.nl</a>) en is  
bijgewerkt t/m: <b>2 februari 2024</b><br>
<br>                                                                    <!Nieuwe data vanaf november 2017: https://www.hetweerinboskamp.nl/voorpagina/statistieken/wuData/IJABOSKA2-year-2021.txt -->
												<!--Voor raadplegen van de originele data click <a href="wsreports/startReports.php", target="new">HIER</a><br>
 												https://www.hetweerinboskamp.nl/weer/statistieken-test -->
<br>
<a href="Graaddagen calculator Heino.htm">Klik hier om naar weerstation Heino te gaan</a>
&nbsp;&nbsp;<br>
<br>
Voor andere KNMI-weerstations kunt u terecht bij de graaddagencalculator op de 
website: <a href="http://www.mindergas.nl/degree_days/calculator", target="new">mindergas.nl</a><br> 
<br> 

<p>Date: <span id="datetime"></span></p>
<script>
var dt = new Date();
document.getElementById("datetime").innerHTML = dt.toLocaleDateString();
</script> 
 
<script language="javascript"> 
	
	var voorbeeld=[
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // januari
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // februari
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,   100,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // maart
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // april
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // mei 
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // juni
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // juli
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // augustus
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // september
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // oktober
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // november
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // december
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99];

	var normaal=[  // heino/Boskamp data:2011
	 2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,  // januari
	 3.8,   3.8,   3.8,   3.8,   3.8,   3.8,   3.8,   3.8,   3.8,   3.8,
	 2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,   2.3,
	 3.0,   3.0,   3.0,   3.0,   3.0,   3.0,   3.0,   3.0,   3.0,   3.0,  // februari
	 2.8,   2.8,   2.8,   2.8,   2.8,   2.8,   2.8,   2.8,   2.8,   2.8,
	 4.3,   4.3,   4.3,   4.3,   4.3,   4.3,   4.3,   4.3,   4.3,
	 4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,  // maart
	 6.3,   6.3,   6.3,   6.3,   6.3,   6.3,   6.3,   6.3,   6.3,   6.3,
	 6.6,   6.6,   6.6,   6.6,   6.6,   6.6,   6.6,   6.6,   6.6,   6.6,   6.6,
	 7.7,   7.7,   7.7,   7.7,   7.7,   7.7,   7.7,   7.7,   7.7,   7.7,  // april
	 8.2,   8.2,   8.2,   8.2,   8.2,   8.2,   8.2,   8.2,   8.2,   8.2,
	11.4,  11.4,  11.4,  11.4,  11.4,  11.4,  11.4,  11.4,  11.4,  11.4,
	11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  // mei 
	12.9,  12.9,  12.9,  12.9,  12.9,  12.9,  12.9,  12.9,  12.9,  12.9,
	13.7,  13.7,  13.7,  13.7,  13.7,  13.7,  13.7,  13.7,  13.7,  13.7,  13.7,
	15.3,  15.3,  15.3,  15.3,  15.3,  15.3,  15.3,  15.3,  15.3,  15.3,  // juni
	15.1,  15.1,  15.1,  15.1,  15.1,  15.1,  15.1,  15.1,  15.1,  15.1,
	16.1,  16.1,  16.1,  16.1,  16.1,  16.1,  16.1,  16.1,  16.1,  16.1,
	17.2,  17.2,  17.2,  17.2,  17.2,  17.2,  17.2,  17.2,  17.2,  17.2,  // juli
	17.7,  17.7,  17.7,  17.7,  17.7,  17.7,  17.7,  17.7,  17.7,  17.7,
	18.2,  18.2,  18.2,  18.2,  18.2,  18.2,  18.2,  18.2,  18.2,  18.2,  18.2,
	18.3,  18.3,  18.3,  18.3,  18.3,  18.3,  18.3,  18.3,  18.3,  18.3,  // augustus
	17.5,  17.5,  17.5,  17.5,  17.5,  17.5,  17.5,  17.5,  17.5,  17.5,
	16.2,  16.2,  16.2,  16.2,  16.2,  16.2,  16.2,  16.2,  16.2,  16.2,  16.2,
	15.2,  15.2,  15.2,  15.2,  15.2,  15.2,  15.2,  15.2,  15.2,  15.2,  // september
	13.9,  13.9,  13.9,  13.9,  13.9,  13.9,  13.9,  13.9,  13.9,  13.9,
	13.1,  13.1,  13.1,  13.1,  13.1,  13.1,  13.1,  13.1,  13.1,  13.1,
	11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  11.9,  // oktober
	 9.7,   9.7,   9.7,   9.7,   9.7,   9.7,   9.7,   9.7,   9.7,   9.7,
	 9.0,   9.0,   9.0,   9.0,   9.0,   9.0,   9.0,   9.0,   9.0,   9.0,   9.0,
	 8.0,   8.0,   8.0,   8.0,   8.0,   8.0,   8.0,   8.0,   8.0,   8.0,  // november
	 6.2,   6.2,   6.2,   6.2,   6.2,   6.2,   6.2,   6.2,   6.2,   6.2,
	 4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,   4.9,
	 4.0,   4.0,   4.0,   4.0,   4.0,   4.0,   4.0,   4.0,   4.0,   4.0,  // december
	 2.7,   2.7,   2.7,   2.7,   2.7,   2.7,   2.7,   2.7,   2.7,   2.7,
	 2.1,   2.1,   2.1,   2.1,   2.1,   2.1,   2.1,   2.1,   2.1,   2.1,   2.1];

	  
 	var jaar2008=[  // Heino
 	-1.1,  -1.9,  -0.3,   2.2,   6.1,   3.9,   6.3,   5.9,   6.2,   7.4,  // januari
 	 9.8,   5.6,   4.7,   6.1,   8.3,   7.7,   5.9,   8.8,  10.4,  11.3,
 	 9.7,   3.7,   5.8,   7.9,   6.3,   8.3,   8.3,   8.0,   6.2,   4.1,   3.8,
 	 5.6,   3.0,   2.9,   5.5,   6.9,   7.2,   4.8,   6.5,   5.3,   4.5,  // februari
 	 4.3,   3.1,   2.3,   3.6,   0.5,  -2.5,  -0.8,   2.9,   2.2,   2.0,
 	 6.8,  10.1,   8.5,   9.0,   7.3,   9.5,   6.6,   6.2,   6.9,
 	 8.5,   9.2,   5.2,   1.9,   3.2,   6.7,   7.1,   6.5,   7.8,   6.9,  // maart
 	 7.8,   7.4,   7.5,   6.9,   6.5,   6.2,   4.0,   3.8,   3.9,   4.2,
 	 2.8,   0.3,   0.3,   1.2,   0.7,   2.4,   4.1,   7.1,   9.1,   9.4,   8.2,
 	 8.3,   8.4,   7.4,   8.1,   7.6,   3.6,   3.2,   3.9,   5.5,   5.5,  // april
 	 6.4,   8.4,   7.8,   6.2,   4.6,   3.4,   5.7,   7.1,   7.8,   9.6,
 	11.6,  11.4,  12.7,  12.3,  10.5,  13.5,  16.1,  11.4,  10.9,  13.3,
 	 9.4,   9.8,  11.2,  13.2,  14.1,  15.8,  16.5,  16.8,  18.0,  18.5,  // mei 
 	17.4,  18.5,  18.3,  17.4,  16.8,  12.9,  10.6,  10.1,   8.9,  10.0,
 	12.6,  14.7,  15.2,  16.7,  14.2,  13.4,  15.5,  18.8,  18.2,  17.5,  14.7,
 	17.9,  22.6,  19.6,  17.8,  17.5,  18.6,  17.6,  19.8,  19.3,  16.4,  // juni
 	13.6,  11.9,  11.1,  11.4,  11.0,  11.5,  13.2,  15.3,  15.4,  15.9,
 	17.9,  20.8,  14.2,  15.0,  17.7,  17.4,  16.5,  17.6,  17.3,  17.1,
 	19.6,  23.3,  18.1,  16.2,  17.7,  19.0,  15.8,  14.8,  15.8,  17.2,  // juli
 	16.2,  15.0,  14.8,  17.0,  17.7,  16.4,  14.6,  15.6,  16.2,  14.2,
 	13.7,  15.5,  17.2,  19.2,  21.6,  22.0,  22.1,  23.9,  20.3,  20.8,  23.3,
 	20.2,  19.4,  18.5,  17.7,  18.8,  21.4,  19.9,  16.9,  17.1,  18.0,  // augustus
 	16.9,  17.2,  16.5,  15.9,  14.1,  14.9,  16.6,  16.3,  17.2,  16.9,
 	17.0,  15.2,  13.4,  15.5,  17.4,  17.4,  16.6,  17.9,  17.6,  17.0,  19.8,
 	17.5,  15.7,  13.8,  15.1,  16.4,  17.6,  15.2,  14.7,  17.2,  18.1,  // september
 	20.0,  17.1,  12.5,  11.6,  11.2,  11.2,  11.1,   9.5,   9.4,  10.1,
 	11.1,  12.3,  12.8,  12.5,  11.2,   9.9,   9.8,  11.2,  11.5,  11.9,
 	11.3,   9.3,   8.6,   8.7,  11.0,  10.5,  14.2,  13.1,  10.4,  11.0,  // oktober
 	13.0,  12.7,  15.7,  13.5,  13.5,   9.8,   8.2,   9.5,  11.1,  13.0,
 	10.0,   8.4,   8.9,   9.0,   8.2,  11.9,   7.6,   4.4,   2.0,   2.1,   4.5,
 	 6.1,   7.4,   8.2,   7.9,   9.3,   9.7,   7.8,   9.5,  10.0,  13.0,  // november
 	 9.4,   7.8,   6.8,   9.4,  11.2,   7.8,   5.4,   6.7,   8.7,   9.0,
 	 3.5,   2.0,   0.8,   0.5,   2.3,   4.8,   6.1,   3.4,   2.1,   0.5,
 	 3.2,   3.2,   1.7,   2.3,   5.2,   4.7,   4.1,   2.5,   1.3,   1.6,  // december
 	 2.6,   1.0,  -0.8,   1.4,   2.4,  -0.2,   1.7,   3.7,   5.4,   7.3,
 	 8.6,   7.7,   5.9,   5.9,   2.9,  -1.5,  -2.6,  -2.5,  -4.7,  -6.3,  -7.2];


	var jaar2009=[  // Heino
	-0.8,  -1.4,  -2.1,   1.9,  -1.9,  -7.2,  -1.6,  -4.5,  -7.2,  -7.0,  // januari
	-1.8,   3.3,   4.5,   3.9,   1.9,   1.2,   4.6,   5.1,   4.7,   3.6,
	 3.5,   3.7,   4.7,   3.7,   1.9,   0.9,  -0.5,  -0.7,  -1.9,  -1.3,   0.1,
	-1.5,   1.0,   1.5,   0.8,   3.3,   5.4,   2.2,   0.7,   1.7,   3.0,  // februari
	 1.6,   1.3,   1.4,  -1.2,   0.9,   5.5,   2.3,  -0.6,   0.8,   4.8,
	 5.1,   6.2,   5.5,   4.3,   5.0,   6.5,   7.1,   7.3,   100,
	 6.0,   5.0,   4.9,   6.9,   5.1,   5.0,   5.1,   7.1,   5.0,   5.0,  // maart
	 5.7,   7.4,   7.0,   8.5,   7.6,   7.6,   6.8,   3.4,   5.6,   3.0,
	 4.1,   7.8,   6.6,   4.0,   5.1,   6.9,   6.2,   5.3,   4.3,   4.2,   6.0,
	 8.1,  11.2,  13.1,   9.7,   9.5,  11.8,  12.2,  10.0,  11.3,  16.4,  // april
	15.0,  14.5,  11.6,  12.7,  15.5,  15.3,  12.5,  11.2,  11.3,  13.0,
	11.1,   9.3,  10.4,  12.7,  14.5,  14.5,  11.9,  10.3,   9.2,  11.0,
	14.3,  13.2,  10.3,   9.6,  11.3,  12.0,  12.8,  12.2,  11.5,  13.3,  // mei 
	11.3,  12.3,  15.0,  15.2,  13.5,  13.2,  13.4,  14.0,  14.4,  14.1,
	13.5,  12.1,  16.0,  15.4,  16.6,  15.0,  12.5,  14.2,  13.8,  16.0,  18.8,
	18.6,  15.4,  11.6,  10.0,   9.3,  11.1,  11.9,  13.6,  15.2,  14.3,  // juni
	12.2,  12.1,  13.9,  15.8,  15.4,  13.9,  16.5,  16.7,  14.8,  13.1,
	12.0,  13.7,  15.9,  17.9,  19.3,  20.1,  19.6,  20.7,  21.2,  21.0,
	20.9,  22.9,  21.4,  19.2,  19.8,  17.7,  15.5,  14.7,  14.5,  13.2,  // juli
	15.3,  16.5,  18.1,  18.6,  20.1,  19.7,  19.2,  15.5,  15.6,  16.6,
	18.8,  20.0,  16.9,  16.0,  15.7,  18.6,  18.9,  16.5,  20.0,  15.4,  15.4,
	18.2,  16.6,  15.0,  17.4,  20.4,  22.2,  22.3,  18.4,  17.9,  18.0,  // augustus
	18.5,  17.6,  16.1,  16.3,  20.8,  18.9,  17.2,  18.4,  21.3,  23.5,
	17.2,  15.4,  17.2,  19.8,  17.5,  17.8,  18.4,  15.8,  14.1,  14.3,  18.1,
	17.5,  16.3,  14.9,  14.1,  14.4,  15.1,  16.4,  18.9,  16.4,  15.1,  // september
	14.3,  14.5,  14.5,  14.3,  15.2,  15.2,  12.3,  13.2,  16.1,  15.1,
	13.0,  14.8,  15.6,  12.5,  10.8,  11.1,  11.1,  14.0,  14.9,  13.8,
	12.3,  10.5,  13.2,  10.6,   9.9,  13.6,  15.4,  10.2,   8.0,  11.4,  // oktober
	11.7,  10.0,   7.2,   2.9,   5.1,  10.0,   7.3,   6.6,   8.0,   6.9,
	 8.5,   6.8,   9.9,  10.4,  12.9,  11.9,  11.2,  11.1,  12.1,  10.1,   8.5,
	11.8,   9.2,   7.5,   7.6,   7.8,   8.5,   7.8,   4.4,   6.7,   7.0,  // november
	 7.7,   6.8,  12.9,  13.1,   9.7,  10.1,  10.4,  11.0,  10.9,  12.1,
	12.7,  11.4,  10.0,  11.4,  11.0,   8.4,   7.0,   7.2,   9.5,   6.1,
	 3.0,   4.0,   8.0,   4.8,   6.3,   9.7,   6.9,   6.1,   6.3,   8.8,  // december
	 6.5,   3.4,   0.5,  -2.9,  -3.0,  -2.3,  -2.2,  -4.0,  -9.7,  -3.6,
	-2.5,   0.5,  -0.2,  -1.8,   2.1,   4.1,   4.0,   1.9,  -0.9,  -0.2,  -0.4];


	var jaar2010=[  // Heino
	-2.9,  -3.2,  -6.3,  -3.5,  -1.1,  -3.9,  -4.7,  -4.7,  -2.3,  -0.4,  // januari
	-0.4,  -2.9,  -3.9,  -0.4,   1.0,   0.7,   2.2,   3.8,   3.3,   1.5,
	 0.7,  -0.7,  -1.3,  -2.0,  -5.0,  -8.2,  -2.7,   1.9,   0.8,  -0.7,   0.6,
	-0.3,   1.2,   1.0,   4.1,   3.8,   2.2,   0.0,  -4.4,  -4.6,  -4.0,  // februari
	-3.3,  -3.4,  -1.8,  -3.3,  -5.4,  -1.4,  -2.1,   2.2,   3.5,   0.8,
	-0.1,   3.9,   1.2,   5.7,   8.0,   7.5,   6.5,   6.0,   100,
	 3.9,   2.4,   1.9,   0.4,   1.2,  -0.3,  -2.3,   0.1,  -0.9,  -0.5,  // maart
	 2.4,   4.4,   4.9,   5.2,   5.4,   4.7,   8.0,  11.1,  12.5,  12.9,
	 8.5,   7.0,   9.4,  12.2,  15.1,   9.9,   9.2,   8.8,   9.6,  10.9,  7.0,
	 4.4,   8.0,   8.1,   7.2,   7.9,  11.0,  13.0,   8.9,   9.0,   5.5,  // april
	 5.3,   8.7,   8.9,   8.9,   8.3,   6.9,   6.8,   9.6,   7.6,   7.6,
	 6.0,   5.9,   7.0,  10.1,  14.7,  12.1,  11.2,  15.1,  18.2,  11.3,
	 9.2,   7.5,   6.9,   7.0,   7.8,   8.7,   6.8,   8.5,   8.1,   6.3,  // mei 
	 6.6,   6.5,   7.3,   8.1,   9.3,  11.5,  11.1,   9.5,  11.6,  12.9,
	13.3,  13.2,  15.9,  16.1,  11.8,   9.2,  11.1,  10.7,  13.9,  12.5,  12.6,
	13.7,  15.1,  15.4,  15.1,  17.2,  19.2,  14.7,  16.4,  17.1,  19.4,  // juni
	17.2,  13.7,  13.6,  15.7,  12.2,  14.9,  16.3,  12.7,  11.2,  12.0,
	12.3,  13.3,  17.5,  19.4,  17.5,  18.4,  21.0,  21.8,  19.1,  18.5,
	22.3,  26.6,  22.0,  20.0,  17.8,  15.5,  18.3,  23.1,  25.5,  25.5,  // juli
	23.6,  20.7,  20.3,  22.8,  19.1,  20.1,  16.8,  17.7,  20.1,  22.4,
	22.3,  19.2,  18.0,  14.8,  16.3,  16.0,  18.2,  18.1,  15.8,  17.0,  18.8,
	18.7,  15.7,  16.2,  16.0,  15.5,  15.8,  17.1,  17.3,  17.1,  18.1,  // augustus
	17.0,  14.8,  15.0,  17.6,  17.7,  17.9,  15.7,  16.2,  16.4,  20.4,
	20.9,  19.9,  19.2,  15.8,  15.7,  15.1,  14.0,  13.2,  12.1,  13.5,  13.1,
	12.2,  12.5,  13.2,  13.3,  12.4,  14.0,  12.4,  15.1,  14.6,  15.2,  // september
	18.0,  14.4,  14.5,  15.3,  13.1,  11.8,  11.3,  10.2,  11.9,  14.5,
	13.8,  14.7,  16.4,  14.6,  10.7,   8.2,  10.9,  10.8,   7.7,   9.3,
	11.6,  14.1,  17.9,  17.3,  15.9,  16.0,  13.8,  13.5,  12.3,  10.1,  // oktober
	 8.5,   6.1,   7.7,   9.2,  10.3,   7.0,   5.3,   6.8,   8.7,   6.1,
	 7.0,   8.7,   6.8,   6.9,   6.0,   6.5,   8.3,  10.7,  10.1,  10.9,   8.1,
	 7.9,  10.3,  12.3,  14.9,  13.0,   7.7,   4.1,   4.1,   3.9,   4.9,  // november
	 5.8,  10.9,  10.1,  11.2,   5.5,   3.0,   4.1,   4.5,   6.5,   7.0,
	 5.2,   4.7,   4.4,   2.7,   1.8,  -2.3,  -1.8,  -3.6,  -1.7,  -2.4,
	-6.7,  -6.8,  -5.0,  -2.9,   1.7,   0.6,  -1.9,  -2.1,   1.1,   2.2,  // december
	 6.7,   1.7,  -2.1,  -3.3,  -1.2,  -0.2,  -3.4,  -5.4,  -6.0,  -7.1,
	-6.3,  -3.2,  -1.2,  -2.1,  -5.2,  -0.1,   0.1,  -0.7,  -4.8,  -4.5,  1.8];

	var jaar2011=[  // Heino
	 2.6,   1.3,   0.5,   0.3,  -0.8,   3.3,   4.0,   8.8,   3.2,   0.5,  // januari
	 2.2,   4.8,   9.4,   9.9,   8.9,   9.6,   7.9,   3.5,   3.2,   0.5,
	 0.7,   4.0,   4.6,   5.0,   4.1,   0.9,  -1.0,  -2.8,  -3.8,  -1.4, -2.1,
	-1.8,   2.9,   5.2,   9.0,  11.4,  10.4,   8.7,   3.5,   2.0,   7.0,  // februari
	 5.8,   3.1,   6.4,   5.6,   4.6,   5.5,   2.2,   0.4,   0.4,  -1.1,
	-2.9,  -2.8,   0.1,   1.7,   5.1,   6.9,   3.1,   2.4,   100,
	 2.1,   0.6,  -0.2,  -1.4,   2.0,   1.3,   0.9,   3.5,   5.9,   7.4,  // maart
	 6.5,   8.3,  10.6,   9.8,   9.9,   6.1,   5.7,   6.4,   2.9,   3.7,
	 5.5,   7.3,   6.8,   7.6,   8.1,   4.5,   3.8,   3.2,   5.0,   8.9, 11.3,
	12.5,  15.5,  11.5,   9.8,   9.4,  14.0,  10.9,   9.9,   9.5,   9.3,  // april
	12.4,   8.1,   7.7,   6.4,   8.8,  10.7,  11.4,  11.6,  13.6,  14.6,
	15.7,  16.8,  17.0,  16.2,  15.4,  13.2,  12.0,  13.9,  16.1,  13.9,
	11.5,   8.6,   6.7,   7.5,   9.6,  13.7,  18.9,  21.1,  17.4,  16.6,  // mei 
	14.9,  12.3,  12.9,  10.9,  10.5,  12.3,  13.3,  14.6,  12.9,  14.0,
	14.3,  14.6,  15.9,  13.1,  14.2,  15.2,  11.6,  12.7,  15.9,  19.6,  12.8,
	12.8,  15.5,  18.4,  20.5,  16.9,  17.0,  14.8,  14.4,  13.8,  13.5,  // juni
	11.6,  14.0,  16.5,  16.3,  16.6,  15.1,  14.6,  14.1,  13.6,  15.6,
	16.9,  15.5,  14.0,  13.6,  13.7,  19.7,  23.0,  25.2,  17.2,  14.0,
	13.3,  14.0,  14.2,  15.0,  16.3,  17.1,  17.3,  17.9,  16.5,  16.6,  // juli
	17.3,  17.9,  13.8,  14.3,  16.3,  17.1,  16.1,  15.6,  17.3,  16.1,
	16.0,  14.2,  13.0,  12.8,  15.0,  14.8,  17.4,  18.3,  15.2,  14.3,  14.5,
	16.5,  20.8,  20.2,  19.9,  18.9,  18.8,  16.2,  14.6,  14.0,  14.8,  // augustus
	17.1,  16.5,  16.5,  16.8,  15.3,  16.1,  16.7,  16.1,  15.2,  16.4,
	19.3,  18.2,  19.2,  18.7,  18.8,  18.5,  14.8,  13.4,  12.3,  13.2,  13.1,
	11.4,  15.9,  20.2,  19.2,  15.1,  15.0,  14.2,  13.7,  17.0,  20.8,  // september
	17.7,  16.8,  15.5,  13.5,  12.8,  12.9,  15.4,  11.6,  12.0,  15.0,
	16.0,  13.3,  12.9,  12.5,  14.5,  17.2,  16.3,  15.5,  16.4,  15.9,
	15.6,  15.6,  18.4,  16.4,  16.8,  13.0,  10.3,   8.6,   9.6,  16.6,  // oktober
	14.3,  10.7,   8.6,   6.9,   6.4,   6.4,  10.7,  10.1,   7.6,   6.4,
	 6.5,   6.3,   7.5,   9.1,  10.2,   9.9,   9.9,  11.4,  12.0,  13.2,  12.5,
	12.6,  11.9,  14.4,  14.7,  11.1,   8.9,   9.5,   7.7,   5.2,   5.4,  // november
	 6.0,   3.9,   1.6,   0.5,   0.9,   0.3,   1.1,   6.9,   2.5,  -0.1,
	 0.1,   0.2,   6.2,   7.7,   7.9,   8.4,   9.4,   4.5,   6.7,   7.1,
	 9.4,   5.9,   7.2,   6.6,   3.8,   3.2,   6.1,   7.0,   5.5,   3.0,  // december
	 2.9,   6.1,   7.4,   4.5,   5.2,   3.7,   3.8,   1.9,   1.7,   4.4,
	 5.3,   8.2,   8.9,   5.5,   8.8,  10.9,   8.7,   6.6,   6.2,   4.4,  6.2];

	var jaar2012=[ // Heino en vanaf 29 maart Boskamp
	11.3,   7.1,   6.9,   6.2,   6.6,   6.2,   6.8,   6.8,   7.6,   6.5,  // januari
	 8.1,   7.4,   5.1,   3.5,   1.1,  -2.1,  -1.2,   1.9,   5.3,   3.5,
	 6.4,   6.3,   3.9,   2.2,   2.3,   3.3,   4.1,   1.5,  -1.4,  -2.9,  -5.2,
	-5.3,  -7.3,  -9.4, -12.1,  -7.3,  -8.5,  -8.0,  -3.4,  -3.8,  -6.2,  // februari
	-7.1,  -3.2,   1.8,   3.7,   4.0,   4.2,   5.6,   6.7,   2.1,   1.8,
	 5.1,   6.5,  10.0,   8.7,   5.1,   5.8,   6.0,   8.6,   9.1,
	 8.8,   7.4,   8.0,   7.4,   6.4,   6.0,   3.9,   5.1,   7.3,   8.7,  // maart
	 8.3,   8.0,   7.6,   5.8,   5.9,   7.0,   8.9,   6.6,   4.7,   8.1,
	 9.6,  10.6,  10.6,   9.9,   8.3,   8.5,   9.5,   9.8,  10.3,   9.1,  8.8,
	 7.2,   4.4,   8.4,   8.8,   7.4,   6.2,   6.5,   5.2,   5.3,   8.4,  // april
	 9.5,   8.2,   7.2,   6.9,   7.8,   5.9,   5.1,   5.1,   8.1,  10.2,
	 9.1,   8.5,   8.5,   9.1,   9.7,   9.9,  11.9,  10.1,  12.2,  12.8,
	15.7,  15.9,  16.5,  13.7,  11.4,   8.2,   7.5,   8.8,  14.0,  15.6,  // mei
	17.9,  15.7,   9.6,   9.4,  11.8,   8.8,   8.4,   9.8,  13.9,  16.7,
	17.9,  19.9,  22.7,  22.4,  21.7,  20.5,  20.0,  20.3,  19.3,  16.1,  15.2,
	14.6,  12.8,  10.3,   9.2,   9.1,  11.1,  12.9,  16.1,  16.2,  13.3,  // juni
	14.9,  15.2,  14.6,  12.5,  12.6,  14.0,  16.7,  16.5,  15.1,  15.5,
	17.6,  17.4,  15.6,  16.0,  13.8,  14.4,  15.4,  17.8,  22.3,  20.3,
	20.3,  16.5,  16.1,  19.3,  22.6,  21.2,  20.2,  20.3,  17.9,  16.7,  // juli
	16.2,  15.6,  14.0,  14.9,  14.4,  15.1,  14.5,  17.0,  17.8,  15.8,
	14.9,  14.0,  17.8,  19.6,  21.4,  22.4,  20.6,  21.1,  19.2,  17.1,  14.9,
	14.9,  20.9,  19.5,  18.0,  19.0,  18.6,  17.0,  15.7,  17.0,  17.1,  // augustus
	15.9,  16.0,  18.5,  19.9,  20.9,  22.6,  19.7,  21.2,  24.5,  27.9,
	23.0,  20.8,  18.8,  17.2,  18.4,  17.9,  16.4,  16.5,  18.5,  18.0,  16.8,
	13.6,  13.7,  15.8,  17.8,  17.7,  16.0,  14.8,  17.1,  18.5,  19.5,  // september
	19.0,  16.2,  12.4,  12.9,  13.1,  14.3,  14.1,  16.3,  13.8,   9.9,
	10.4,  11.7,  11.5,   8.3,  13.3,  13.4,  13.2,  12.5,  12.6,  12.6,  12.2,
	13.6,  14.3,  12.8,  11.1,  12.6,  10.5,   9.0,   7.7,   7.7,   8.6,  // oktober
	 8.6,  10.1,   8.7,   8.4,   9.6,  10.2,  11.0,  15.8,  17.2,  15.7,
	13.5,  15.4,  12.6,  11.2,  10.6,   5.2,   2.3,   4.0,   6.3,   7.0,   7.3,
	 7.6,   7.0,   5.8,   6.1,   6.7,   6.4,  10.0,   9.6,   8.8,   9.7,  // november
	 9.0,   6.9,   7.7,   8.5,   3.2,   3.2,   4.2,   6.2,   4.1,   8.4,
	 5.6,   8.0,   6.3,   5.6,  10.1,   7.0,   7.2,   5.4,   3.7,   1.1,
	 2.9,   2.7,   1.3,   3.6,   0.9,  -0.3,  -0.3,  -3.8,   3.3,   2.7,  // december
	-0.3,   0.7,  -1.4,   3.0,   8.2,   7.2,   6.2,   5.0,   4.5,   3.3,
	 2.1,   5.9,  10.3,  10.5,   8.4,   7.2,   7.2,   4.2,  10.5,   7.4,  9.1];

	var jaar2013=[  // Boskamp
	 6.5,	5.7,   9.6,   9.1,   7.9,   7.9,   7.2,	    7,   6.3,	4.4,  // januari
	   1,  -0.7,  -2.8,  -3.5,  -4.0,  -6.6,  -4.3,  -1.9,  -4.2,  -5.3,
	-3.1,  -5.0,  -4.9,  -4.8,  -4.8,  -2.0,   2.7,   4.0,   9.9,  10.4,  6.9,
	 4.9,   3.2,   4.0,   7.4,   2.7,   2.0,   1.9,   0.5,  -0.5,  -0.5,  // februari
	-1.7,  -0.5,  -0.6,  -1.2,   2.6,   4.2,   1.6,   1.5,   2.2,  -0.8,
	-1.2,  -2.5,  -2.3,  -0.4,   1.0,   2.3,   0.9,   1.3,   100,
	 3.1,   2.4,   3.5,   3.8,   7.8,  10.0,   6.9,   7.1,   2.7,  -0.8,  // maart
	-2.7,  -3.2,  -3.1,  -1.3,  -1.0,   4.3,   4.6,   5.8,   2.0,   0.5,
	 0.9,  -0.5,  -1.1,  -1.6,  -0.3,   0.1,   0.6,  -0.8,  -0.3,   0.1,  -0.4,
	 1.5,   2.7,   3.0,   2.6,   3.3,   4.2,   2.5,   4.9,   6.0,   7.0,  // april
	 7.0,   8.2,   9.6,  14.5,  14.2,  11.9,  14.3,  13.9,   8.2,   5.8,
	 7.4,   8.9,  10.6,  13.8,  15.8,   8.8,   6.3,   6.5,   7.7,   8.9,
	 8.8,  10.9,  12.2,  12.0,  13.4,  15.7,  15.3,  16.4,  14.0,  11.8,  // mei
	10.4,   9.4,  10.3,   9.6,  12.2,  10.4,   9.8,   9.6,   9.9,  11.6,
	10.5,   8.4,   6.1,   7.8,   8.8,   9.0,  13.3,  15.5,  11.7,  12.9,  16.0,
	10.7,  11.9,  10.3,  14.6,  16.1,  17.7,  17.8,  14.5,  12.4,  12.2,  // juni
	14.1,  18.6,  16.9,  16.1,  15.3,  15.6,  18.0,  22.8,  22.7,  18.8,
	16.7,  16.6,  14.4,  14.1,  13.4,  12.9,  12.4,  13.0,  14.3,  15.4,
	16.9,  16.3,  16.8,  18.3,  18.4,  17.5,  20.0,  18.7,  17.3,  15.5,  // juli
	15.3,  14.0,  15.9,  16.5,  18.5,  19.3,  20.0,  21.0,  19.5,  18.9,
	22.6,  24.6,  25.2,  21.9,  21.9,  21.8,  21.2,  20.1,  20.3,  18.2,  18.8,
	24.3,  26.9,  21.9,  19.7,  22.4,  18.9,  14.2,  16.8,  14.3,  16.8,  // augustus
	16.4,  16.4,  14.8,  15.0,  14.9,  19.7,  19.1,  18.8,  16.1,  15.2,
	16.6,  18.0,  19.6,  19.5,  18.4,  17.5,  16.9,  18.3,  16.8,  17.6,  17.3,
	14.2,  15.9,  18.4,  19.3,  21.4,  21.8,  16.5,  14.8,  13.6,  12.2,  // september
	13.9,  14.7,  14.3,  15.0,  12.9,  11.8,  10.0,  10.8,  11.0,  13.7,
	13.0,  15.9,  16.3,  14.4,  13.5,  12.7,   9.4,  10.5,  11.6,  10.4,
	 9.4,   9.7,  10.4,  14.3,  15.0,  12.1,  12.3,  14.5,  13.9,   8.3,  //oktober
	 7.7,   8.2,   7.9,  10.0,   9.5,  10.2,  12.2,   9.7,  12.2,  14.9,
	14.5,  16.7,  15.6,  11.7,  13.1,  16.2,  14.2,  13.4,  10.1,   8.6,   9.5,
	11.0,   9.9,   8.5,   7.7,   6.3,   8.8,  11.7,   8.3,   8.0,   5.7,  // november
	 5.8,   6.8,   5.9,   5.6,   6.2,   5.4,   6.2,   5.1,   5.3,   2.9,
	 2.2,   3.3,   3.8,   5.1,   3.9,   4.8,   5.4,   8.0,   6.3,   5.8,
	 6.2,   4.4,   0.4,   3.9,   3.4,   2.7,   3.9,   7.2,   8.8,   6.3,  // december
	 1.5,   3.1,   1.5,   4.4,   7.4,   8.9,   5.4,   7.0,   6.9,   4.9,
	 6.6,	7.6,   7.2,  10.2,   6.2,   4.2,   6.3,   6.6,   5.0,	4.1,   6.3];

	var jaar2014=[  // Boskamp
	 6.5,	8.4,   7.8,   7.1,   5.6,   9.9,  10.5,   8.3,   8.6,   6.0,  // januari
	 4.3,	2.1,   5.6,   5.3,   3.9,   6.5,   7.2,   6.8,   5.0,   2.3,
	 1.7,   3.0,   1.7,   2.0,   1.5,   4.5,   3.6,   4.3,  -0.5,  -1.1,   1.1,
	 5.7,   5.0,   3.5,   5.6,   6.3,   7.7,   7.3,   5.9,   5.7,   4.4,  // februari
	 5.2,   5.4,   4.9,   4.3,   9.7,   6.1,   3.8,   6.5,   7.4,   7.7,
	 6.8,   5.7,   6.5,   8.1,   8.8,   7.5,   5.0,   5.3,   100,
	 5.8,   6.1,   4.5,   4.8,   5.9,   6.7,   8.4,   8.9,  12.2,   9.5,  // maart
	 8.7,   8.5,   7.8,   5.6,   9.2,   9.9,  10.2,   8.5,  11.0,  13.8,
	 7.9,   6.3,   4.5,   5.2,   4.6,   5.0,   8.1,   9.7,  11.1,  12.0,  12.8,
	13.3,  12.7,  14.3,  13.5,  12.8,  12.7,  16.2,   9.6,   9.4,  11.1,  // april
	11.1,   9.4,  10.0,   8.7,   7.0,   8.0,  10.0,   8.7,  10.9,  15.1,
	11.8,  12.9,  13.7,  13.6,  16.7,  14.9,  11.9,  12.8,  13.4,  14.4,
	12.1,   9.3,   8.6,   7.6,  11.5,  14.7,  12.9,  11.5,  12.1,  10.8,  // mei 
	10.2,  11.0,  10.3,   9.4,  10.1,  11.5,  13.3,  16.3,  18.1,  20.7,
	18.7,  18.9,  15.4,  15.4,  16.3,  15.9,  15.5,  12.3,  10.0,  12.0,  13.7,
	13.4,  14.2,  16.2,  15.9,  12.4,  16.4,  20.6,  20.7,  20.8,  21.4,  // juni
	18.6,  17.1,  17.2,  15.9,  15.9,  14.3,  16.4,  14.7,  14.1,  14.4,
	15.2,  15.2,  15.4,  15.7,  15.0,  16.3,  17.1,  16.5,  15.7,  14.6,
	14.6,  15.1,  18.2,  21.5,  19.8,  20.4,  15.4,  21.8,  20.0,  19.7,  // juli
	19.8,  19.0,  17.1,  19.4,  21.5,  24.0,  21.4,  24.1,  26.7,  23.0,
	19.5,  21.9,  22.7,  21.0,  17.7,  20.2,  21.1,  19.3,  21.7,  19.2,  18.8,
	20.6,  21.6,  20.5,  19.8,  18.4,  17.5,  18.5,  18.7,  19.4,  18.3,  // augustus
	16.9,  16.2,  16.5,  16.0,  15.4,  15.0,  14.7,  13.6,  12.0,  12.8,
	13.0,  13.4,  12.1,  12.4,  12.6,  13.5,  13.9,  16.5,  16.8,  15.9,  14.7,
	14.7,  14.5,  15.3,  17.7,  17.9,  16.6,  17.0,  14.9,  14.1,  14.3,  // september
	15.7,  15.0,  16.3,  15.3,  15.6,  19.4,  18.6,  18.4,  17.1,  17.0,
	15.5,  13.4,  12.5,  12.4,  13.4,  14.8,  13.7,  13.8,  15.8,  16.3, 
	15.1,  16.2,  16.1,  15.9,  12.4,  13.4,  12.5,  11.9,  14.5,  13.7, // oktober
	11.1,  11.2,  14.2,  11.9,  13.1,  13.1,  13.5,  15.6,  16.8,  14.2, 
	11.0,  09.1,  10.7,  11.3,  11.9,  11.5,  12.2,   8.8,   9.5,  11.5,  12.9, 
	13.7,  14.4,  12.4,   8.9,   7.1,   6.5,   6.6,   9.3,   9.2,   9.2,  // november 
	 8.3,   9.2,   7.4,   9.3,   9.4,   8.3,   8.9,   7.1,   6.7,   6.6,
	 4.3,   6.8,  10.1,   7.1,   3.1,   3.8,   5.8,   4.4,   1.7,   1.7, 
	 0.4,  -0.3,  -2.2,  -0.9,   2.6,   3.5,   2.8,   2.3,   0.5,   5.2,  //december 
	 4.6,   6.6,   3.9,   2.5,   4.6,   4.4,   6.3,  10.7,   8.8,   6.2,
	 6.3,  10.7,  10.8,   7.2,   4.6,   1.3,   0.8,  -2.2,   1.9,   3.7,   4.3];

	var jaar2015=[  // Boskamp
	 2.6,   6.0,   3.4,   2.7,   1.6,   2.5,   3.5,   5.4,   8.1,   9.5,  // januari
	 4.7,   7.4,   8.0,   3.6,   7.0,   5.1,   2.2,   1.5,   0.2,   0.2,
	-0.7,  -1.9,  -3.1,   0.4,   1.9,   4.1,   3.7,   3.9,   1.4,   0.5,   0.8,
	-0.3,  -1.2,  -0.9,  -0.3,  -1.2,  -0.9,   0.0,   3.8,   5.2,   5.1,  // februari
	 3.7,   1.9,   3.2,   6.1,   1.4,   0.9,   2.3,   0.8,   2.5,   4.3,
	 2.7,   2.0,   4.6,   4.7,   3.9,   5.6,   4.8,   3.7,   100,
	 7.4,   4.5,   3.0,   3.8,   4.4,   5.7,   8.1,   9.4,   8.0,   7.8,  // maart
	 2.1,   4.7,   3.4,   2.4,   4.9,   6.5,   7.7,   6.4,   5.9,   3.1,
	 5.3,   4.2,   3.9,   5.2,   5.2,   4.9,   6.1,   6.2,   8.8,   6.7,   7.5, 
	 5.6,   5.3,   6.5,   5.2,   5.3,   7.3,   7.0,   8.8,   9.8,  12.2,  // april
	 9.5,   9.7,   8.5,  11.4,  13.9,   9.0,   7.8,   8.0,   7.7,  10.0,
	 9.6,   8.2,   9.2,  11.8,  11.6,  10.3,   8.3,   5.3,   8.4,   9.3,
	 7.8,   8.8,  11.8,  15.2,  15.6,  11.5,  11.7,  13.3,  13.4,  12.7,  // mei
	17.8,  15.0,  12.3,  10.4,   8.9,   9.0,  11.4,  10.5,  10.2,   9.6, 
	11.7,  14.8,  12.3,  12.3,  12.3,  10.3,  12.7,  12.6,  11.0,  10.8,  12.1,  
	12.2,  14.3,  14.7,  14.8,  21.1,  17.0,  14.0,  11.9,  11.2,  14.5,  // juni 
	16.8,  20.0,  18.8,  14.3,  12.9,  10.5,  15.2,  15.0,  12.3,  12.3, 
	13.7,  12.4,  11.2,  15.1,  17.7,  18.6,  17.5,  15.6,  18.3,  18.9, 
	23.2,  25.3,  22.6,  24.7,  20.2,  17.8,  19.0,  15.0,  12.8,  15.1,  // juli 
	19.3,  16.3,  16.0,  17.2,  16.4,  18.5,  21.0,  17.7,  14.7,  16.2, 
	20.4,  18.6,  16.9,  16.9,  14.3,  13.3,  14.6,  14.3,  12.4,  13.0,  12.3,
	13.8,  16.1,  21.0,  16.2,  16.9,  19.9,  19.3,  18.2,  16.5,  18.0,
	18.2,  18.1,  19.9,  20.4,  17.9,  14.1,  13.1,  14.0,  15.5,  16.7,  // augustus
	18.1,  18.9,  19.1,  17.6,  15.4,  18.8,  15.0,  14.7,  15.7,  18.0,  20.5, 
	15.4,  12.3,  11.4,  12.0,  11.9,  11.3,  13.1,  12.6,  11.8,  12.6,  // september
	12.8,  13.9,  15.4,  14.0,  11.6,  13.4,  13.7,  12.6,  12.8,  12.3,
	13.5,  12.0,  11.3,  11.4,  11.5,   9.7,   9.7,  10.7,   9.8,  10.3,
	 9.5,   9.2,   9.5,  10.5,  11.7,  13.5,  14.1,  12.7,  10.8,   9.5,  // oktober
	 5.2,   3.2,   2.3,   3.7,   5.0,   6.0,   6.6,   5.8,   9.5,   8.1,
	 9.2,  11.5,  10.9,  11.0,  10.2,   9.9,   9.6,   8.0,  11.3,   9.6,  9.3,  
	 7.4,   5.6,   7.4,  11.1,  12.6,  14.6,  16.2,  12.8,  13.4,  14.0,  // november
 	12.4,  13.0,  11.0,   8.1,  13.4,  12.0,  12.7,  12.1,  10.7,   6.3, 
	 3.8,   2.2,   2.9,   2.9,   5.3,   3.6,   4.0,   5.7,   9.0,   8.2, 
	 8.3,  10.5,   9.0,   8.7,   7.6,   9.6,  10.1,   9.8,   7.0,   6.0,  // december
	 6.1,   6.1,   6.6,   6.9,   6.1,  10.3,  12.9,  11.6,  12.0,  11.5, 
	10.0,  12.3,  10.3,   9.2,   8.0,  13.1,  11.6,   9.1,   7.7,   6.8,   7.1];

var jaar2016=[    // Boskamp
	 4.6,   3.7,   5.2,   1.7,   2.2,  -1.6,   3.1,   5.1,   4.3,   6.8,  // januari
	 4.7,   5.3,   4.3,   2.5,   1.7,   1.2,  -1.3,  -3.9,  -3.6,   0.8,
	-1.2,  -0.5,   5.7,   6.6,  10.5,   9.4,  10.4,   6.3,   7.7,   6.8,  4.8,  
	10.8,   8.6,   4.1,   3.4,   7.5,   9.3,   8.7,   7.8,   5.3,   4.0,  // februari
	 3.8,   1.8,   1.1,   0.5,   1.4,  -0.3,  -1.4,   1.4,   2.9,   7.0,
	 9.7,   6.6,   3.6,   1.9,   1.1,   1.2,   1.1,   1.0,   1.1,
	 0.4,   5.6,   3.5,   1.2,   0.9,   1.7,   2.7,   3.0,   4.1,   3.2,  // maart
	 1.9,   2.8,   3.3,   3.5,   4.3,   4.6,   5.2,   4.9,   5.9,   6.3,
	 7.1,   7.4,   7.6,   7.4,   7.2,   9.2,   9.9,   9.4,   7.3,   8.5,  7.2,
	 7.3,  10.3,  15.0,  14.4,   9.9,   8.5,   6.7,   7.5,   8.8,  10.6,  // april
	12.2,  12.3,   9.0,   9.5,  10.2,   9.3,   6.6,   7.5,   9.9,   7.7,
	 8.7,   8.0,   6.6,   5.0,   5.0,   4.5,   7.0,   6.1,   7.6,   8.9,  
	 8.1,  11.3,  10.4,   9.5,  13.0,  17.2,  20.2,  20.2,  19.7,  19.0,  // mei
	20.2,  19.5,  15.2,   8.0,   7.1,   8.7,  12.3,  13.4,  14.0,  13.7,
	17.7,  16.7,  12.1,  10.4,  11.9,  13.5,  15.3,  17.6,  16.8,  17.9,  18.6, 
	19.9,  17.4,  17.6,  21.1,  20.4,  17.6,  19.2,  15.2,  15.1,  15.2,  // juni
	16.1,  16.5,  16.0,  15.5,  14.6,  15.8,  15.7,  14.8,  14.6,  14.9,
	17.8,  19.9,  23.2,  20.6,  16.3,  14.8,  14.8,  16.3,  15.9,  16.2,
	16.9,  14.7,  14.4,  17.1,  15.6,  15.1,  16.3,  16.7,  18.1,  21.5,  // juli
	18.5,  16.3,  14.6,  13.9,  16.4,  18.5,  20.5,  20.5,  21.6,  25.2,
	22.9,  20.1,  20.4,  21.0,  19.7,  18.9,  18.8,  18.5,  18.7,  18.0,  16.9,
	15.9,  16.1,  18.9,  17.6,  17.5,  16.6,  18.0,  18.1,  14.0,  13.1,  // augustus
	12.4,  18.2,  17.6,  17.5,  15.9,  15.5,  16.8,  17.0,  17.7,  18.5,
	16.0,  17.0,  20.8,  23.0,  24.3,  22.3,  21.3,  21.1,  17.7,  16.7,  17.9,
	15.8,  16.4,  18.1,  17.4,  19.4,  18.0,  18.5,  19.3,  17.4,  17.6,  // september 
	17.3,  20.9,  23.1,  23.1,  21.6,  17.9,  16.2,  16.2,  14.7,  13.4,
	15.5,  13.9,  14.9,  14.6,  16.9,  14.4,  13.7,  18.2,  16.1,  13.6,-
	13.3,  11.1,  12.8,  12.2,   9.0,   7.8,  11.1,  10.4,   6.6,   5.9,  // oktober
	 6.9,   8.3,   8.3,   9.1,  10.0,  11.8,  11.9,  10.1,   8.1,   7.8,
	 7.7,   7.6,   4.3,   6.0,   8.1,   9.4,  11.3,  12.6,   9.3,  10.0,  10.2,
	 9.2,   7.2,   7.1,   7.4,   6.5,   6.3,   4.4,   0.9,   2.8,   3.5,  // november
	 2.3,   0.9,   1.8,   1.6,   9.6,  11.7,   9.1,   6.0,   5.1,   8.3,
	11.5,  11.4,   7.7,   5.8,   2.0,  -1.1,   5.0,  -1.1,  -3.3,   1.4,  
	 7.5,   6.2,   0.7,  -2.7,  -3.2,  -1.8,   5.2,   8.0,   9.3,   7.5,  // december
	 8.0,   6.2,   5.8,   7.8,   6.6,   3.5,   5.2,   5.8,   2.4,  -1.0,  
	 2.8,   5.5,   5.5,   7.3,   9.7,   8.4,   6.0,   2.3,  -0.1,  -1.2,  1.1];

var jaar2017=[    // Boskamp https://www.hetweerinboskamp.nl/weer/statistieken-test
	 0.8,   2.1,   3.6,   4.9,  -0.7,  -4.1,  -0.8,   3.8,   4.0,   4.8,   // januari
	 6.6,   4.9,   1.8,   2.0,   0.5,  -2.5,  -3.5,  -3.5,  -1.9,  -2.1,
	-0.1,  -3.5,  -1.6,   0.5,  -1.4,  -2.5,   0.8,   5.8,   4.6,   4.3,  3.0, 
	 3.0,   7.9,   8.5,   6.2,   5.3,   3.8,   1.2,  -0.8,  -2.2,  -2.7,  // februari
	-0.5,  -0.1,   1.0,   2.1,   5.6,   6.4,   6.3,   5.7,   5.5,   8.7,
	 8.8,   9.0,   7.6,   4.4,   4.5,   8.0,   9.3,   4.9,   100,
	 5.4,   5.3,   5.9,   9.7,   7.2,   6.1,   5.9,   5.6,   7.1,   6.9,  // maart
	 7.4,   8.4,   6.2,   9.2,   8.8,   9.2,   8.3,   8.6,  10.7,  10.1,
	 7.6,   6.8,   7.8,   7.9,   7.3,   7.0,   9.5,  11.1,  11.6,  16.1,  16.2,
	12.4,  11.5,   9.7,  10.1,   9.3,   8.2,  10.3,   9.8,  11.5,  11.0,  // april
	 9.1,   9.2,   9.0,   8.1,   9.4,   7.1,   6.7,   5.2,   3.9,   6.2,
	10.5,   7.8,   6.3,   8.5,   6.4,   5.5,   5.7,   7.6,   7.9,  11.0,
	10.7,  10.1,  10.7,  10.1,   8.2,  12.0,  12.2,  10.2,   8.1,   8.1,  // mei
	14.7,  16.6,  15.8,  14.6,  15.7,  21.4,  23.7,  18.5,  14.0,  13.4,
	15.3,  18.4,  18.1,  15.8,  17.6,  20.5,  23.9,  21.2,  22.4,  20.1,  18.1, 
	16.6,  20.3,  20.1,  17.1,  16.8,  15.1,  13.9,  17.3,  17.4,  18.1,  // juni
	21.3,  16.6,  17.0,  17.5,  20.6,  17.0,  17.6,  20.9,  24.1,  21.9,
	19.9,  24.1,  20.4,  17.5,  17.4,  17.6,  16.6,  17.8,  17.4,  16.7,
	16.5,  16.3,  16.8,  18.5,  19.2,  20.2,  21.5,  19.5,  17.9,  19.0,  // juli
	17.8,  15.6,  15.5,  14.9,  17.5,  18.6,  18.6,  19.4,  23.2,  20.8,
	18.4,  21.5,  17.1,  15.9,  16.4,  19.2,  19.1,  17.6,  18.3,  19.6,  18.8,
	19.3,  19.6,  19.6,  19.2,  17.3,  16.7,  17.4,  18.0,  18.2,  17.1,  //augustus
	17.1,  18.3,  17.2,  18.9,  18.8,  18.6,  16.8,  17.1,  16.1,  15.9,
	15.6,  17.4,  18.6,  19.3,  18.1,  18.7,  18.9,  18.8,  21.6,  19.5,  15.5,
	15.2,  14.9,  14.3,  16.2,  18.6,  16.3,  16.6,  14.3,  15.0,  14.2,  //september
	15.2,  15.3,  14.8,  12.6,  13.0,  11.4,  13.4,  13.1,  12.4,  14.4,
	14.8,  13.9,  12.9,  14.2,  14.7,  13.9,  15.1,  15.8,  17.9,  13.2,
	13.4,  16.2,  14.4,  13.0,  12.9,  12.3,  11.7,  10.9,   9.9,  13.8,  //oktober
	15.2,  13.7,  14.7,  16.8,  16.6,  18.8,  14.4,  14.1,  15.9,  14.7,
	14.1,  11.4,  11.6,  14.3,  13.4,  13.7,  12.1,  11.6,  10.6,   8.6,  9.3,
	12.1,  10.4,   8.8,  10.3,   7.7,   6.8,   3.6,   5.9,   8.3,   8.1,  //november
	 6.3,   4.9,   6.6,   5.8,   9.2,   9.3,   6.2,   6.9,   6.4,   8.0,
	11.2,  11.1,  10.9,   7.1,   3.8,   3.8,   5.7,   4.1,   1.9,   2.7,
	 0.7,  -1.2,   2.9,   6.6,   6.7,   7.8,   6.0,   3.0,   1.8,   1.7,  //december
	-0.1,   2.3,   3.1,   2.8,   3.1,   3.3,   2.8,   3.8,   5.1,   7.2,
	 7.8,   6.5,   7.3,   8.5,   6.7,   5.8,   4.9,   3.4,   2.7,   7.9,  11.5];

var jaar2018=[     // Boskamp
	 7.4,   5.7,   8.1,   8.5,   6.5,   3.7,   0.6,   0.9,   0.1,   7.5,  // januari
	 3.5,   3.3,   4.1,   2.7,   4.3,   4.8,   3.1,   5.7,   3.6,   2.3,
	 3.8,   5.1,   7.9,  10.9,   7.9,   6.2,   5.3,   8.5,   7.8,   5.1,   5.6,
	 2.8,   4.8,   2.4,   1.7,   0.3,  -1.3,  -2.1,  -1.3,   0.5,   3.0,  // februari
	 4.4,   3.5,   3.0,   2.0,   3.8,   4.0,   2.4,   2.4,   1.9,   1.4,
	 0.8,   0.3,   0.3,   0.2,  -2.0,  -2.8,  -3.2,  -6.2,   100,
	-4.9,  -3.9,  -2.3,   3.8,   8.6,   7.1,   5.0,   5.5,   6.9,  10.9,  // maart
 	10.8,  12.2,   6.8,   5.9,   6.3,   3.5,  -1.2,  -0.3,   0.5,   3.4,
	 3.7,   6.8,   5.9,   7.5,   5.8,   4.8,   6.2,   6.2,   7.1,   9.4,  8.7,
	 6.1,   6.7,  13.7,  11.6,   6.1,   7.4,  13.8,  15.3,  13.6,  16.7,  // april
	13.8,  11.9,  11.8,  11.3,  13.5,  13.3,  13.4,  16.2,  19.8,  21.6,
	15.7,  17.8,  14.3,  12.3,  11.9,  11.1,  10.6,  11.8,   9.6,  10.0,
	 9.2,  11.5,  11.3,  11.3,  14.1,  16.8,  18.2,  19.2,  20.1,  14.6,  // mei
	13.0,  17.1,  16.7,  20.1,  19.3,  16.8,  12.8,  11.9,  11.1,  15.4,
	18.6,  19.9,  20.8,  19.1,  21.2,  22.9,  21.9,  23.4,  24.9,  24.1,  22.9,
	20.5,  18.0,  21.2,  18.8,  18.1,  19.6,  22.0,  19.6,  21.7,  19.3,  // juni
	17.0,  14.6,  15.1,  16.1,  18.8,  19.1,  16.8,  16.1,  17.8,  20.2,
	14.7,  14.1,  14.7,  13.6,  17.3,  17.2,  17.3,  20.4,  20.1,  20.3,
	19.9,  19.4,  19.1,  19.1,  18.9,  20.2,  17.8,  17.8,  17.3,  17.8,  // juli
	17.7,  20.3,  19.0,  18.5,  19.6,  21.5,  22.3,  19.0,  21.6,  20.1,
	22.1,  22.0,  22.3,  25.5,  25.8,  27.3,  29.5,  21.3,  21.2,  26.0,  23.1,
	21.2,  23.3,  24.3,  23.7,  21.1,  22.6,  26.0,  21.2,  18.4,  17.3,  //augustus
	16.8,  18.7,  19.7,  19.8,  20.1,  19.5,  18.9,  17.5,  20.3,  19.4,
	20.1,  20.9,  19.3,  16.2,  14.1,  14.3,  16.7,  18.1,  16.1,  16.0,  14.3,
	14.3,  16.3,  19.3,  21.3,  19.8,  17.6,  15.0,  15.1,  18.2,  18.2,  //september
	18.8,  15.8,  14.2,  13.4,  15.9,  16.2,  18.1,  19.7,  19.5,  20.2,
	15.0,  12.7,   9.5,  11.2,  11.5,  12.8,  15.8,  11.7,   9.6,  10.1,
	10.3,  11.4,  12.9,  14.7,  14.7,  14.4,  11.2,  10.6,  13.3,  14.7,  //oktober
	16.3,  18.9,  21.9,  19.8,  18.7,  17.9,  15.7,  12.3,   9.7,   9.3,
	12.5,  10.7,  10.2,  14.0,  12.3,   8.9,   8.2,   3.8,   3.9,   6.7,   8.2,
	10.3,   7.8,   5.7,   5.4,   6.5,  11.9,  12.3,   8.4,   8.2,  11.6,  //november
	11.4,  10.0,  10.6,   9.0,   6.7,   4.3,   4.0,   1.9,   5.1,   2.9,
	 2.8,   2.9,   3.1,   2.2,   3.6,   4.0,   3.0,   4.1,   8.2,   9.3, 
	 7.3,  10.9,  10.3,   4.6,   4.1,   9.9,   8.7,   7.9,   7.6,   5.3,  //december
	 3.9,   2.0,   1.4,   1.6,   0.1,   0.8,   5.0,   6.0,   7.3,   7.9,
	 9.9,   7.1,   6.3,   4.5,   5.0,   4.0,   3.0,   3.5,   7.5,   8.0,   8.9];

var jaar2019=[    //boskamp: https://www.hetweerinboskamp.nl/voorpagina/wsreports/wuData/IJABOSKA2-year-2019.txt
	 7.0,   5.0,   4.0,   3.7,   6.8,   5.2,   5.7,   6.8,   4.3,   2.3,  // januari
	 5.4,   6.9,   8.2,   4.3,   4.3,   6.5,   3.3,   1.2,  -0.4,  -1.9,
	-1.8,  -1.8,  -1.6,  -3.7,  -0.5,   5.7,   5.4,   3.0,   1.8,   1.1, -0.1,
	 0.7,   1.0,   2.9,   2.0,   4.0,   5.0,   7.9,   7.8,   9.1,   6.7,  // februari
	 5.8,   5.2,   5.8,   6.6,   7.1,   9.1,   7.6,   9.7,   7.6,   7.9,
	 8.8,   9.1,   6.8,   6.9,   7.8,   9.3,   9.7,   8.4,   100,
	 7.1,   8.5,  10.8,   9.5,   7.4,   9.6,   9.4,   8.3,   8.2,   4.6,  // maart
	 4.8,   6.2,   6.8,   8.2,   9.4,   9.0,   7.6,   5.8,   5.7,   8.1,
	10.9,  12.9,   7.3,   6.2,   7.1,   7.4,   8.7,   9.4,  10.3,  11.3,  8.1,
	 6.9,   9.0,   7.9,   6.4,   7.3,  10.3,  13.9,  13.8,   9.2,   6.0,  // april
	 5.4,   5.3,   2.3,   5.4,  10.9,  11.5,  12.7,  15.7,  17.0,  16.3,
	14.8,  16.8,  15.9,  18.2,  13.4,  12.7,  10.3,   9.6,   9.6,  10.2,
	10.5,  10.2,   8.7,   6.5,   7.0,   7.3,   8.6,   9.5,  11.7,  11.0,  // mei 
	 9.6,   9.2,   9.6,  10.6,  12.0,  11.2,  12.2,  16.2,  16.8,  14.8,
	13.1,  14.1,  15.7,  16.0,  14.2,  16.2,  14.8,  11.4,  12.6,  16.7,  18.9,
	19.3,  23.2,  19.3,  19.7,  19.1,  15.6,  16.5,  15.2,  15.9,  18.4,  // juni
	16.5,  15.4,  15.2,  17.8,  17.8,  17.6,  20.3,  21.8,  20.1,  18.3,
	16.6,  17.1,  22.2,  26.0,  28.0,  22.1,  17.1,  18.4,  22.9,  22.9,
	19.1,  17.5,  15.9,  16.5,  19.4,  17.0,  14.7,  14.0,  15.7,  14.0,  // juli
	17.9,  16.3,  17.0,  15.5,  15.6,  15.6,  17.7,  19.5,  20.2,  19.6,
	19.4,  20.8,  24.1,  27.5,  28.7,  29.7,  26.0,  22.1,  21.3,  22.3,  19.1,
	18.3,  17.7,  17.7,  18.9,  20.7,  19.7,  19.3,  19.0,  18.2,  20.8,  // augustus
	18.9,  15.9,  14.8,  16.2,  17.3,  17.5,  17.8,  16.9,  16.7,  16.6,
	16.4,  17.5,  18.6,  21.2,  22.0,  24.1,  25.0,  24.4,  20.0,  18.1,  20.0,
	17.1,  15.4,  16.5,  15.7,  13.6,  13.7,  14.4,  14.6,  12.7,  12.6,  // september
	13.7,  18.7,  17.6,  13.4,  15.4,  13.6,  12.2,  11.2,  11.9,  11.6,
	14.2,  17.8,  16.9,  15.4,  15.3,  15.9,  15.5,  15.6,  14.6,  14.6,
	14.9,  10.3,  11.3,   9.9,   9.8,   9.3,   9.4,  13.1,  11.6,  11.7,  // oktober
	14.2,  13.0,  16.0,  15.2,  15.6,  13.3,  13.8,  12.6,  11.5,  10.7,
	12.5,  12.9,  11.3,  14.4,  13.9,  16.8,   9.6,   7.6,   5.8,   4.3,  3.2,
	 5.6,  12.9,  11.2,  10.4,   9.3,   7.7,   7.4,   5.3,   6.1,   4.4,  // november
	 4.9,   4.9,   5.9,   5.2,   4.1,   4.4,   4.2,   6.4,   5.4,   0.1,
	 3.2,   5.7,   5.3,   4.8,   5.9,   8.5,  10.2,   9.5,   5.4,   2.2,
	-0.4,   4.2,   5.8,   2.0,   1.1,   6.1,   8.8,   9.3,   6.7,   4.8,  // december
	 6.2,   4.9,   4.1,   5.3,   6.9,   6.9,  10.3,   6.6,  10.2,  10.9,
	 7.7,   7.6,   7.5,   7.6,   7.0,   5.8,   2.8,  -0.7,   1.2,   5.0,  1.0];

var jaar2020=[    //boskamp: https://www.hetweerinboskamp.nl/voorpagina/statistieken/wuData/IJABOSKA2-year-2020.txt
	 0.4,   1.9,   7.5,   5.8,   6.2,   5.8,   7.0,  10.3,  11.2,   7.1,  // januari
	 4.9,   6.9,   7.5,  10.2,  10.1,   7.1,   8.7,   4.2,   4.0,   3.4,
	 2.1,   4.1,   3.5,   2.3,   1.9,   4.5,   8.1,   5.3,   4.9,   8.2,  11.2,
	10.8,   8.6,   9.5,   4.9,   3.8,   4.7,   4.9,   6.7,   9.9,   8.0,  // februari
	 5.8,   5.1,   4.8,   6.6,   9.9,  12.6,   8.2,   7.4,   5.8,   7.9,
	 6.8,   9.0,   8.2,   6.7,   7.0,   3.6,   2.6,   3.8,   9.0,
	 6.9,   5.7,   5.1,   5.8,   5.7,   5.5,   7.0,   8.7,   8.1,   9.9,  // maart
	11.0,   8.7,   6.1,   6.0,   9.7,   9.2,   9.0,  11.2,   8.8,   6.7,
	 4.6,   4.3,   4.5,   5.6,   6.0,   6.0,   8.1,   7.3,   4.1,   3.5,   4.0,
	 4.4,   7.3,   7.0,   7.9,  12.1,  15.7,  13.6,  15.0,  13.3,  10.0,  // april
	12.1,  13.6,   8.1,   6.8,   8.8,  12.3,  10.1,  11.4,  12.3,  11.9,
	13.6,  15.1,  15.3,  13.0,  10.5,   9.7,  12.9,  10.2,  11.8,  12.1,
	 9.9,   9.8,  10.4,  11.0,   9.0,  10.4,  11.5,  14.5,  17.2,  14.1,  // mei 
	 8.7,   7.7,   8.0,   7.9,   8.7,  11.4,  12.7,  15.5,  16.4,  16.9,
	18.8,  19.6,  15.9,  13.0,  15.0,  15.3,  16.2,  13.8,  14.7,  17.4,  17.1,
	18.4,  20.9,  18.9,  13.4,  10.0,  11.8,  13.3,  14.0,  13.7,  13.7,  // juni
	16.0,  21.2,  21.5,  19.5,  19.7,  19.1,  19.2,  18.5,  19.2,  17.9,
	18.8,  18.9,  20.1,  22.8,  23.8,  25.1,  22.2,  18.9,  16.6,  16.1,
	17.8,  17.4,  17.7,  16.8,  18.9,  15.1,  14.2,  13.9,  16.3,  15.5,  // juli
	14.4,  15.6,  17.6,  15.8,  16.2,  16.0,  17.2,  21.1,  19.7,  17.0,
	15.9,  15.2,  17.8,  18.6,  18.7,  19.5,  18.2,  18.5,  16.7,  18.2,  23.0,
	22.9,  18.4,  15.5,  16.8,  21.4,  23.2,  25.4,  25.8,  25.9,  25.8,  // augustus
	26.9,  27.7,  25.1,  23.4,  22.0,  23.0,  19.1,  19.2,  20.7,  23.4,
	24.9,  19.6,  17.5,  17.0,  15.9,  16.3,  15.9,  16.2,  15.0,  15.2,  15.7,
	15.4,  15.0,  14.8,  17.6,  15.2,  14.1,  15.1,  16.8,  17.5,  13.7,  // september
	14.5,  14.4,  17.0,  19.0,  21.1,  18.6,  13.5,  13.6,  14.2,  14.0,
	15.0,  15.1,  16.0,  15.1,  12.1,  12.1,  13.2,  12.1,  13.7,  15.7,
	14.0,  13.0,  13.4,  11.9,  11.9,  12.5,  12.6,  12.7,  11.9,   9.0,  // oktober
	 9.1,   9.8,   9.4,   8.9,   9.2,   8.6,   8.2,   8.3,   8.8,  10.6,
	15.3,  14.6,  12.3,  13.4,  13.1,  10.2,  10.1,  10.4,  10.2,  14.4,  13.7,
	13.8,  16.4,   9.8,   7.3,   7.0,   8.0,   7.1,   7.6,  11.0,   7.4,  // november
	10.6,  10.0,   9.3,  12.1,  12.6,  10.1,  11.8,  12.8,   8.7,   5.1,
	 7.6,   8.9,   6.0,   7.5,   6.6,   8.8,   6.9,   3.3,   1.6,   0.5,
	 7.5,   5.5,   5.3,   5.8,   2.4,   2.3,   5.0,   2.3,   0.5,   0.2,  // december
	 2.0,   5.9,   6.5,   8.3,   8.4,   8.2,   9.0,   7.4,   8.7,   8.6,
	 7.2,  10.5,  10.2,   5.5,   3.6,   3.8,   5.0,   4.0,   4.1,   3.7,   3.0];

var jaar2021=[    //boskamp: https://www.hetweerinboskamp.nl/voorpagina/statistieken/wuData/IJABOSKA2-year-2021.txt
	 2.2,   3.7,   3.3,   2.9,   2.8,   2.3,   2.5,   2.3,   1.9,   1.9,  // januari
	 4.3,   5.1,   3.2,   0.8,   1.0,   0.9,   2.7,   4.2,   7.3,   8.6,
	 7.9,   4.3,   2.9,   2.4,   1.3,   4.2,   4.1,   4.3,   6.3,   0.3,  -2.1,
	 0.5,   2.6,   8.3,   6.8,   5.3,   2.1,  -4.3,  -5.5,  -5.4,  -3.7,  // februari
	-4.5,  -6.3,  -6.7,  -2.6,   2.5,   6.2,   9.2,   8.8,   7.2,  11.7,
	11.8,  11.6,  13.9,  14.1,  12.1,   7.4,   5.3,   3.9,   100,
	 6.0,   6.3,   5.7,   4.1,   2.4,   1.4,   1.9,   4.7,   5.2,   5.3,  // maart
	 8.9,   6.9,   7.0,   6.6,   6.6,   6.2,   4.7,   3.9,   3.9,   3.7,
	 6.2,   6.0,   7.4,   8.3,   8.8,  10.2,   6.5,   9.5,  13.5,  14.1,  14.3,
	11.0,   5.4,   7.3,   6.8,   3.9,   2.6,   3.3,   4.6,   7.8,   5.6,  // april
	 4.6,   3.4,   4.9,   4.7,   6.0,   6.6,   7.4,   8.6,   9.9,  11.8,
	 8.7,   7.4,   7.5,   7.4,   7.1,   6.8,   8.5,  10.4,   7.5,   8.7,
	 8.5,   7.5,   9.2,   9.2,   7.6,   7.1,   7.5,   8.9,  19.2,  17.3,  // mei 
	14.2,  13.7,  13.2,  10.5,  10.3,  11.4,  11.8,  11.6,  10.4,  11.7,
	13.3,  11.1,  11.3,  12.1,  10.5,  10.8,  10.8,  12.7,  13.1,  14.6,  15.5,
	18.7,  20.5,  20.5,  20.8,  16.7,  16.1,  17.5,  18.3,  20.3,  20.4,
	20.7,  18.0,  17.0,  20.4,  18.6,  21.7,  25.7,  23.2,  20.2,  19.6,
	14.1,  14.5,  15.1,  16.0,  15.9,  19.7,  21.2,  21.3,  17.8,  14.5,
	15.1,  17.3,  19.0,  18.9,  17.3,  18.4,  18.4,  18.8,  19.5,  18.6,  // juli
	19.3,  20.9,  19.8,  20.0,  18.4,  17.8,  20.3,  20.6,  17.9,  17.4,
	19.0,  18.6,  16.6,  18.8,  20.3,  19.8,  18.9,  17.7,  17.4,  17.5,  16.8,
	15.8,  15.6,  14.9,  17.0,  18.4,  18.5,  17.9,  16.7,  16.8,  17.4,  // augustus
	17.9,  19.5,  18.5,  18.6,  19.6,  16.5,  14.7,  16.7,  16.5,  17.7,
	18.7,  18.3,  18.5,  16.8,  15.6,  16.8,  16.0,  16.5,  16.2,  18.2,  16.7,
	16.8,  16.8,  16.1,  15.6,  15.9,  16.4,  18.9,  19.6,  20.0,  20.1,  // september
	18.1,  17.2,  15.0,  16.5,  18.1,  16.2,  15.7,  16.0,  14.8,  12.0,
	12.3,  14.5,  15.1,  17.4,  17.6,  16.8,  16.2,  13.8,  11.5,  11.7,
	13.8,  14.4,  13.6,  13.7,  12.8,  12.0,   9.1,   9.8,  10.7,   9.2,  // oktober
	12.4,  11.1,  10.4,  13.2,  11.6,   8.4,  11.1,  11.7,  15.3,  15.8,
	10.2,   7.9,   7.9,   7.8,   9.7,  12.6,  13.9,  11.7,  12.5,  12.3,  12.2,
	10.0,   7.6,   5.5,   6.5,   7.9,   9.4,   9.4,   8.3,   8.1,   8.4,  // november
	 8.8,   7.3,   9.7,   9.1,   6.5,   5.0,   7.2,   9.4,  12.0,  10.2,
	 7.9,   3.4,   6.6,   5.7,   5.0,   3.9,   2.9,   2.3,   3.0,   7.1,
	 8.1,   2.1,   2.5,   4.4,   3.9,   2.9,   2.9,   4.7,   2.8,   2.5,  // december
	 0.3,   7.6,   9.6,   8.8,   9.9,   8.0,   8.1,   6.7,   6.7,   3.9,
	-2.7,  -3.4,   1.3,   7.3,  -1.7,  -2.8,   3.9,   8.2,   8.9,  12.4,  11.4];

var jaar2022=[    //boskamp: https://www.hetweerinboskamp.nl/voorpagina/statistieken/wuData/IJABOSKA2-year-2022.txt
 	12.5,  11.7,   9.8,   6.8,   4.2,   3.5,   3.7,   2.4,   4.4,   0.8,  // januari
	 1.0,   3.8,   4.0,   5.4,   3.6,   4.2,   6.8,   5.3,   3.1,   3.5,
	 4.1,   6.1,   5.6,   4.7,   3.1,   3.3,   6.4,   6.1,   8.9,   5.7,   5.2,
	 6.2,   7.6,   7.5,   6.5,   5.6,   6.8,   5.8,   9.4,   9.2,   7.0,  // februari
	 3.9,   2.1,   5.1,   8.8,   7.1,  10.4,   8.8,   7.9,   5.8,   7.7,
	 5.7,   6.4,   7.5,   6.4,   4.4,   3.5,   4.1,   4.8,   100,
	 5.6,   6.9,   4.4,   2.8,   1.7,   1.6,   2.5,   4.6,   6.0,   7.2,  // maart
	 9.0,  10.8,  11.7,  10.4,   7.1,   8.6,   9.2,   7.4,   8.2,   5.2,
	 6.9,  10.9,  10.6,   9.9,   8.7,  10.1,   9.6,   7.1,   8.0,   5.4,  1.4,
       1.9,   2.7,   3.2,   6.0,   9.0,   9.4,   8.7,   6.5,   5.6,   6.3,  // april
	 8.3,  13.4,  14.3,  13.5,   8.5,  10.4,  10.4,  12.7,  12.0,  11.7,
	12.4,  13.2,  13.7,  11.9,   8.3,  10.0,   8.1,   8.8,   8.4,   8.3,
	10.9,  11.3,   9.7,  11.0,  12.9,  14.5,  15.2,  12.1,  14.1,  17.6,  // mei 
	17.6,  14.7,  14.3,  15.8,  17.4,  18.3,  18.0,  20.6,  19.2,  14.0,
	14.7,  15.3,  17.6,  13.7,  13.7,  16.6,  14.2,  12.6,  10.8,  11.3,  12.6,
	12.8,  14.1,  16.9,  16.9,  16.7,  14.7,  15.5,  15.8,  17.0,  17.6,  // juni
	19.0,  17.0,  15.4,  14.9,  17.6,  18.1,  21.9,  22.8,  14.9,  15.8,
	16.1,  19.0,  22.5,  20.8,  20.5,  18.7,  17.2,  18.2,  21.7,  20.3,
	16.9,  18.8,  18.7,  17.8,  16.8,  16.7,  16.7,  18.0,  17.7,  16.2,  // juli
	18.3,  20.6,  23.3,  17.3,  17.3,  17.8,  17.6,  22.8,  27.1,  25.1,
	18.9,  17.0,  18.2,  23.1,  22.4,  17.7,  16.4,  16.5,  18.2,  19.9,  19.4,
	19.2,  20.2,  24.2,  22.6,  18.7,  16.4,  17.3,  17.7,  19.3,  21.2,  // augustus
	23.3,  24.1,  23.8,  24.5,  23.2,  23.6,  20.5,  20.8,  20.1,  20.1,
	18.4,  20.0,  22.1,  23.6,  24.9,  20.1,  17.8,  16.3,  17.0,  18.0,  17.8,
	18.0,  18.8,  19.8,  20.5,  21.8,  22.7,  19.7,  17.5,  16.2,  16.9,  // september
	16.8,  17.5,  18.4,  15.2,  14.6,  12.4,  11.8,  10.7,  12.8,  11.6,
	10.2,  14.2,  12.2,  13.4,  11.7,  11.3,   9.7,   9.8,   8.8,  10.8,
	13.5,  13.6,  12.6,  14.0,  16.3,  13.3,  12.8,  12.7,  10.2,  10.5,  // oktober
	 9.7,   9.0,  12.2,  12.6,  13.2,  14.4,  15.3,  13.8,   9.1,  10.3,
	14.7,  14.1,  13.8,  15.3,  14.1,  14.0,  16.3,  17.5,  15.8,  15.9,  13.4,
	15.2,  12.5,  12.3,   9.8,   8.6,  10.1,  12.9,  13.4,  12.8,  11.5,  // november
	10.0,   7.6,   7.0,   5.4,  10.5,  10.7,   9.8,   7.5,   0.2,  -1.4,
	 2.6,   6.3,   8.5,   8.6,   8.7,   6.6,   6.3,   8.0,   8.0,   5.4,
	 5.4,   2.6,   1.1,   1.1,   4.6,   5.0,   3.8,   2.7,   0.7,  -1.8,  // december
	 0.4,  -0.6,  -4.4,  -5.3,  -2.5,  -0.3,  -1.1,  -3.1,   5.7,  10.2,
	 8.2,   8.5,   8.8,   9.0,   8.0,   7.1,   5.2,   8.3,   9.4,   7.9,  13.5];

var jaar2023=[    //boskamp: https://www.hetweerinboskamp.nl/voorpagina/statistieken/wuData/IJABOSKA2-year-2023.txt
	13.0,   9.3,   5.8,  11.0,  10.5,  10.1,  10.6,   8.5,   6.4,   6.2,  // januari
	 9.7,   9.9,   8.3,   8.0,   5.9,   4.3,   1.8,   1.3,   2.5,   0.9,
	-0.6,   0.2,   2.8,   2.1,  -0.8,   2.9,   3.7,   2.4,   3.5,   6.3,   5.8,
	 6.6,   7.5,   8.9,   6.9,   6.2,   3.7,   0.4,   0.1,   2.0,   4.1,  // februari
	 8.2,   6.5,   6.8,   4.2,   4.8,   7.8,  10.7,  10.4,   7.8,   8.1,
	 8.8,   8.0,   6.8,   3.9,   3.8,   1.5,   1.4,   2.9,   100,
	 1.3,   2.5,   4.2,   5.8,   4.2,   3.6,   2.6,   0.6,   1.3,   1.3,  // maart
	 2.1,   5.5,  12.8,   7.3,   4.4,   7.5,  11.5,  12.9,  11.4,   8.4,
	10.6,  10.7,  12.5,  11.5,   9.2,   7.0,   4.3,   4.8,   9.4,  13.4,  10.9,
	 9.7,   5.9,   4.9,   4.7,   5.4,   5.7,   8.5,   7.3,  11.3,  11.2,  // april
	10.4,   9.2,   8.6,   9.4,   7.8,  10.4,  10.9,   9.9,  10.8,   8.9,
	11.7,  11.6,  11.9,   9.1,   6.8,   6.2,   7.4,  10.5,  12.0,  11.3,
	12.2,   9.9,   8.8,  13.7,  14.8,  14.5,  15.8,  16.0,  15.1,  13.7,  // mei 
	13.8,  16.3,  16.8,  15.6,  13.1,  10.3,  10.5,   9.4,  13.1,  15.4,
	18.1,  19.6,  13.5,  11.6,  12.4,  12.1,  14.4,  15.9,  12.9,  12.7,  15.9,
	12.7,  14.5,  16.4,  16.1,  15.4,  16.3,  16.4,  17.5,  21.3,  23.1,  // juni
	24.7,  23.8,  22.1,  20.5,  20.8,  20.5,  20.4,  21.8,  22.5,  22.4,
	21.6,  19.4,  20.7,  21.9,  24.6,  21.3,  18.2,  17.5,  20.2,  18.0,
	17.8,  17.8,  16.9,  16.3,  14.5,  17.0,  20.4,  24.4,  23.9,  21.4,  // juli
	22.9,  19.0,  18.4,  19.2,  22.4,  19.4,  17.6,  18.7,  18.6,  17.5,
	16.9,  15.6,  17.3,  18.1,  15.2,  15.8,  16.6,  20.2,  19.2,  17.7,  16.8,
	16.8,  17.1,  17.4,  16.9,  15.7,  15.3,  15.6,  15.7,  16.2,  17.7,  // augustus
	21.0,  20.3,  19.2,  20.3,  20.4,  19.0,  17.9,  20.6,  22.5,  20.9,
	20.8,  20.1,  19.7,  20.8,  19.8,  17.0,  15.2,  16.0,  15.2,  14.5,  14.6,
	15.1,  17.9,  16.5,  18.0,  21.5,  22.4,  21.9,  22.0,  21.4,  22.8,  // september
	23.0,  20.6,  17.1,  14.7,  15.3,  17.2,  17.8,  18.7,  16.2,  18.7,
	16.3,  14.8,  13.6,  14.4,  16.3,  16.6,  17.5,  18.1,  17.1,  14.9,
	18.1,  18.7,  16.5,  14.1,  15.3,  15.9,  17.9,  15.5,  16.7,  17.8,  // oktober
	17.4,  14.0,  17.8,  11.7,   7.6,   8.8,   7.8,   8.1,  13.4,   9.7,
	13.4,  12.6,  10.2,  11.6,   9.6,   9.9,   9.9,  10.8,  12.9,  11.9,  10.7,
	12.3,  11.8,   9.7,   9.2,  10.0,  10.0,   9.3,   9.1,   9.7,   7.6,  // november
	 6.9,   6.7,   8.2,  11.7,  10.1,   6.4,   4.3,   6.5,  12.1,  10.3,
	 7.5,   3.7,  10.8,   5.7,   4.9,   4.9,   3.4,   1.6,   1.4,   0.2,
	-1.1,  -0.5,   1.3,   1.1,   1.0,   2.9,   0.4,   4.2,   7.8,   8.9,  // december
	 8.4,   7.7,   8.0,   5.0,   7.7,   8.3,   9.0,   7.6,   7.5,   7.5,
	 9.0,   6.9,   9.2,  11.4,  11.6,   8.3,   5.9,  10.8,   9.1,   7.3,   8.8];

var jaar2024=[    //boskamp: https://www.hetweerinboskamp.nl/voorpagina/statistieken/wuData/IJABOSKA2-year-2024.txt
	13.0,   9.3,   5.8,  11.0,  10.5,  10.1,  10.6,   8.5,   6.4,   6.2,  // januari
	 9.7,   9.9,   8.3,   8.0,   5.9,   4.3,   1.8,   1.3,   2.5,   0.9,
	-0.6,   0.2,   2.8,   2.1,  -0.8,   2.9,   3.7,   2.4,   3.5,   6.3,  5.8,
	 6.6,   7.5,    99,    99,    99,    99,    99,    99,    99,    99,  // februari
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,   100,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // maart
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // april
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // mei 
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // juni
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // juli
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // augustus
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // september
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // oktober
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // november
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,  // december
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,
	  99,    99,    99,    99,    99,    99,    99,    99,    99,    99,   99];


	n =  new Date();
	y = n.getFullYear();
	m = n.getMonth() + 1;
	d = n.getDate();
	document.getElementById("date").innerHTML = d + "/" + m + "/" + y;
	einddag = d;
	eindmaand = m;
	eindjaar=y
	 
	function begindatum()
	{
		reftemp = parseFloat(document.form1.reftemp.value); 
		begindag = parseFloat(document.form1.begindag.value); 
		beginmaand = parseFloat(document.form1.beginmaand.value); 
		beginjaar = parseFloat(document.form1.beginjaar.value); 
		tekst1 = "";
		test1 = 0;
		dag = begindag;
		maand = beginmaand;
		jaar = beginjaar;
		dagnummer = maand + dag;
		dagtemp = 99;
		ndagtemp = 99;
		
		haaldata();
		if (dagtemp == 100)
		{
			tekst1 = "de ingevoerde begindatum bestaat niet"; 
			test1 = 1;
		}
		else if (dagtemp == 99)
		{
			tekst1 = "(nog) geen gegevens beschikbaar voor deze begindatum"; 
			test1 = 1;
		}
		controleermaand();
		if (dagtemp == 100)
		{
			tekst1 = "de ingevoerde begindatum bestaat niet"; 
			test1 = 1;
		}
		
	
		if (test1 == 1)
		{
			document.form1.begintemp.value = "";
			document.form1.begingraaddag.value = "";
			document.form1.begingewogengraaddag.value = "";
			document.form1.beginweegfactor.value = "";
			document.form1.nbegintemp.value = "";
			alert(tekst1);
		}
	
		if (test1 == 0)
		{
			begintemp = dagtemp;
			nbegintemp = ndagtemp;
			if (begintemp < reftemp) 
				begingraaddag = reftemp - begintemp;
			else 
				begingraaddag = 0;
			if ((maand >= 91)&&(maand <= 244)) 
				beginweegfactor = 0.8;
			else if ((maand >= 60)&&(maand <=274)) 
				beginweegfactor = 1;
			else 
				beginweegfactor = 1.1;
			begingewogengraaddag = begingraaddag*beginweegfactor;
			document.form1.begintemp.value = Math.round(10*begintemp)/10 ;
			document.form1.begingraaddag.value = Math.round(10*begingraaddag)/10;
			document.form1.begingewogengraaddag.value = Math.round(10*begingewogengraaddag)/10;
			document.form1.beginweegfactor.value = Math.round(10*beginweegfactor)/10;
			document.form1.nbegintemp.value = Math.round(10*nbegintemp)/10 ;
		}
	}
	
	
	function einddatum()
	{
		reftemp = parseFloat(document.form1.reftemp.value); 
		einddag = parseFloat(document.form1.einddag.value); 
		eindmaand = parseFloat(document.form1.eindmaand.value); 
		eindjaar = parseFloat(document.form1.eindjaar.value); 
		tekst2 = "";
		test2 = 0;
		dag = einddag;
		maand = eindmaand;
		jaar = eindjaar;
		dagnummer = maand + dag;
		dagtemp = 99;
		ndagtemp = 99;
	
		haaldata();
		if (dagtemp == 100)
		{
			tekst2 = "de ingevoerde einddatum bestaat niet"; 
			test2 = 1;
		}
		else if (dagtemp == 99)
		{
			tekst2 = "(nog) geen gegevens beschikbaar voor deze einddatum"; 
			test2 = 1;
		}
		controleermaand();
		if (dagtemp == 100)
		{
			tekst2 = "de ingevoerde einddatum bestaat niet"; 
			test2 = 1;
		}
			
		if (test2 == 1)
		{
			document.form1.eindtemp.value = "";
			document.form1.eindgraaddag.value = "";
			document.form1.eindgewogengraaddag.value = "";
			document.form1.eindweegfactor.value = "";
			document.form1.neindtemp.value = "";
			alert(tekst2);
		}
		else if (test2 == 0)
		{
			eindtemp = dagtemp;
			neindtemp = ndagtemp;
			if (eindtemp < reftemp) 
				eindgraaddag = reftemp - eindtemp;
			else 
				eindgraaddag = 0;
			
			if ((maand >= 91)&&(maand <= 244)) 
				eindweegfactor = 0.8;
			else if ((maand >= 60)&&(maand <=274)) 
				eindweegfactor = 1;
			else 
				eindweegfactor = 1.1;
			eindgewogengraaddag = eindgraaddag*eindweegfactor;
			document.form1.eindtemp.value = Math.round(10*eindtemp)/10 ;
			document.form1.eindgraaddag.value = Math.round(10*eindgraaddag)/10;
			document.form1.eindgewogengraaddag.value = Math.round(10*eindgewogengraaddag)/10;
			document.form1.eindweegfactor.value = Math.round(10*eindweegfactor)/10;
			document.form1.neindtemp.value = Math.round(10*neindtemp)/10 ;
		}
		
	}
	
	function bereken()
	{
	    totaaldagen = 0;
	    totaalgraaddagen = 0;
	    ntotaalgraaddagen = 0;
	    totaalgewogengraaddagen = 0;
	    ntotaalgewogengraaddagen = 0;
	    weegfactor = 1;
	    tm = parseFloat(document.form1.tm.value); 
	    begindatum();
	    einddatum();
	
	    test3 = 0;
	    tekst3 = "";
	    startdag = beginjaar*1000 + beginmaand + begindag;
	    stopdag = eindjaar*1000 + eindmaand + einddag;
	    if (stopdag < startdag) 
	    {
	        test3 = 1;	 
	        tekst3 = "eindatum moet later zijn dan begindatum";
	    }
	    
	    if ((test1+test2+test3)>0) 
	    {
	        alert (tekst1 + '\n' + tekst2 + '\n' + tekst3);
			document.form1.totaaldagen.value = "";
			document.form1.totaalgraaddagen.value = "";
			document.form1.totaalgewogengraaddagen.value = "";
			document.form1.ntotaalgraaddagen.value = "";
			document.form1.ntotaalgewogengraaddagen.value = "";
	    }
	    else
	    {
			dagnummer = beginmaand + begindag;
			jaar = beginjaar;
			var i=startdag;
			while (i<stopdag)
			{
			    haaldata();
			    if (dagtemp < reftemp) 
		                graaddag = reftemp - dagtemp;
			    else 
		                graaddag = 0;
			    if (ndagtemp < reftemp) 
		                ngraaddag = reftemp - ndagtemp;
			    else 
		                ngraaddag = 0;
		                
			    totaalgraaddagen = totaalgraaddagen + graaddag;
			    ntotaalgraaddagen = ntotaalgraaddagen + ngraaddag;			    
			    if ((dagnummer >= 92)&&(dagnummer <= 274)) 
					weegfactor = 0.8;
			    else if ((dagnummer >= 61)&&(dagnummer <=305)) 
					weegfactor = 1;
			    else 
					weegfactor = 1.1;
			
			    gewogengraaddag = graaddag * weegfactor;
			    ngewogengraaddag = ngraaddag * weegfactor;			    
			    totaalgewogengraaddagen = totaalgewogengraaddagen + gewogengraaddag;
			    ntotaalgewogengraaddagen = ntotaalgewogengraaddagen + ngewogengraaddag;				
			    if (dagtemp < 99) 
		                totaaldagen = totaaldagen +1;
			    dagnummer = dagnummer +1;
			    if (dagnummer > 366) 
		        {
		        	dagnummer = 1; 
		            jaar = jaar+1;
				}
			    i=1000*jaar+dagnummer;
			}
				
			if ((i == stopdag)&&(tm == 1))
			{
		    	haaldata();
			    if (dagtemp < reftemp) 
		                graaddag = reftemp - dagtemp;
			    else 
		                graaddag = 0;
			    if (ndagtemp < reftemp) 
		                ngraaddag = reftemp - ndagtemp;
			    else 
		                ngraaddag = 0;
		                
			    totaalgraaddagen = totaalgraaddagen + graaddag;
			    ntotaalgraaddagen = ntotaalgraaddagen + ngraaddag;			    
			    if ((dagnummer >= 92)&&(dagnummer <= 274)) 
		            weegfactor = 0.8;
			    else if ((dagnummer >= 61)&&(dagnummer <=305)) 
		            weegfactor = 1;
			    else 
					weegfactor = 1.1;
			
			    gewogengraaddag = graaddag * weegfactor;
			    ngewogengraaddag = ngraaddag * weegfactor;
			    
			    totaalgewogengraaddagen = totaalgewogengraaddagen + gewogengraaddag;
			    ntotaalgewogengraaddagen = ntotaalgewogengraaddagen + ngewogengraaddag;			    
			    if (dagtemp < 99) 
					totaaldagen = totaaldagen +1;
	        }
	    }
	    document.form1.totaaldagen.value = Math.round(totaaldagen);
	    document.form1.totaalgraaddagen.value = Math.round(10*totaalgraaddagen)/10;
	    document.form1.totaalgewogengraaddagen.value = Math.round(10*totaalgewogengraaddagen)/10;
	    document.form1.ntotaalgraaddagen.value = Math.round(10*ntotaalgraaddagen)/10;
	    document.form1.ntotaalgewogengraaddagen.value = Math.round(10*ntotaalgewogengraaddagen)/10;
	    
	    
	}
	
	
	function controleermaand()
	{
	    if ((maand == 31)&&(dag >29)) dagtemp = 100; //februari
	    if ((maand == 91)&&(dag >30)) dagtemp = 100; //april
	    if ((maand == 152)&&(dag >30)) dagtemp = 100; //juni
	    if ((maand == 244)&&(dag >30)) dagtemp = 100; //september
	    if ((maand == 305)&&(dag >30)) dagtemp = 100; //november
	    if (dagtemp == 100) ndagtemp = 100;
	}
	
	
	
	function haaldata()
	{
	    if (jaar == 2000) dagtemp = jaar2000[dagnummer-1];
	    else if (jaar == 2001) dagtemp = jaar2001[dagnummer-1];
	    else if (jaar == 2002) dagtemp = jaar2002[dagnummer-1];
	    else if (jaar == 2003) dagtemp = jaar2003[dagnummer-1];
	    else if (jaar == 2004) dagtemp = jaar2004[dagnummer-1];
	    else if (jaar == 2005) dagtemp = jaar2005[dagnummer-1];
	    else if (jaar == 2006) dagtemp = jaar2006[dagnummer-1];
	    else if (jaar == 2007) dagtemp = jaar2007[dagnummer-1];
	    else if (jaar == 2008) dagtemp = jaar2008[dagnummer-1];
	    else if (jaar == 2009) dagtemp = jaar2009[dagnummer-1];
	    else if (jaar == 2010) dagtemp = jaar2010[dagnummer-1];
   	    else if (jaar == 2011) dagtemp = jaar2011[dagnummer-1];
   	    else if (jaar == 2012) dagtemp = jaar2012[dagnummer-1];
   	    else if (jaar == 2013) dagtemp = jaar2013[dagnummer-1];
	    else if (jaar == 2014) dagtemp = jaar2014[dagnummer-1];
	    else if (jaar == 2015) dagtemp = jaar2015[dagnummer-1];
	    else if (jaar == 2016) dagtemp = jaar2016[dagnummer-1];
	    else if (jaar == 2017) dagtemp = jaar2017[dagnummer-1];
	    else if (jaar == 2018) dagtemp = jaar2018[dagnummer-1];
	    else if (jaar == 2019) dagtemp = jaar2019[dagnummer-1];
	    else if (jaar == 2020) dagtemp = jaar2020[dagnummer-1];
	    else if (jaar == 2021) dagtemp = jaar2021[dagnummer-1];
	    else if (jaar == 2022) dagtemp = jaar2022[dagnummer-1];
	    else if (jaar == 2023) dagtemp = jaar2023[dagnummer-1];
	    else if (jaar == 2024) dagtemp = jaar2024[dagnummer-1];
	    else dagtemp = 99;
	    ndagtemp = normaal[dagnummer-1];
	    if (dagtemp == 99) ndagtemp = 99;
	    if (dagtemp == 100) ndagtemp = 100;
	}
	
</script>
</p>
<p>&nbsp;</p>



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