<graph baseFontSize="10" showvalues="0" shownames="0" xAxisName='Years (Mouse over data points to see detailed information)' yAxisName='Thousands of tons' formatNumberScale='0' showNames='1' zeroPlaneAlpha="0" showAlternateHGridColor='1' AlternateHGridColor='ff5904' divLineColor='ff5904' divLineAlpha='20' alternateHGridAlpha='5'>
	<set name="1974" value="41.41850535" />
	<set name="1975" value="60.51128573" />
	<set name="1976" value="82.233307" />
	<set name="1977" value="98.78364782" />
	<set name="1978" value="61.78488479" />
	<set name="1979" value="62.31722165" />
	<set name="1980" value="83.26401" />
	<set name="1981" value="79.260715" />
	<set name="1982" value="80.3328" />
	<set name="1983" value="59.668725" />
	<set name="1984" value="51.679745" />
	<set name="1985" value="49.6174" />
	<set name="1986" value="54.438005" />
	<set name="1987" value="53.500265" />
	<set name="1988" value="56.44320275" />
	<set name="1989" value="64.74109265" />
	<set name="1990" value="66.004275" />
	<set name="1991" value="54.58063369" />
	<set name="1992" value="57.10682872" />
	<set name="1993" value="53.95843725" />
	<set name="1994" value="56.167475" />
	<set name="1995" value="58.4375" />
	<set name="1996" value="75.0222" />
	<set name="1997" value="68.827" />
	<set name="1998" value="58.189" />
	<set name="1999" value="61.884" />
	<set name="2000" value="55.9" />
	<set name="2001" value="41.882" />
	<set name="2002" value="35.488" />
	<set name="2003" value="38.843" />
	<set name="2004" value="35.146" />
	<set name="2005" value="30.469" />
	<set name="2006" value="30.126" />
	<set name="2007" value="27.7146" />
	<set name="2008" value="27.745" />
	<set name="2009" value="20.31611" />
	<set name="2010" value="22.54" />
	<set name="2011" value="15.21" />
</graph>