<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="110.0184867" />
	<set name="1975" value="90.67785525" />
	<set name="1976" value="95.77318636" />
	<set name="1977" value="81.62218658" />
	<set name="1978" value="91.83005051" />
	<set name="1979" value="87.91602545" />
	<set name="1980" value="80.3794" />
	<set name="1981" value="82.38757395" />
	<set name="1982" value="82.49829735" />
	<set name="1983" value="54.09480479" />
	<set name="1984" value="58.55284231" />
	<set name="1985" value="72.81607148" />
	<set name="1986" value="100.049852" />
	<set name="1987" value="82.7199807" />
	<set name="1988" value="109.9573945" />
	<set name="1989" value="101.3634215" />
	<set name="1990" value="106.7787" />
	<set name="1991" value="119.6537554" />
	<set name="1992" value="118.2899528" />
	<set name="1993" value="130.6712922" />
	<set name="1994" value="125.8416" />
	<set name="1995" value="132.3849272" />
	<set name="1996" value="146.6168545" />
	<set name="1997" value="149.7831192" />
	<set name="1998" value="113.757" />
	<set name="1999" value="102.4019884" />
	<set name="2000" value="61.701" />
	<set name="2001" value="54.7897" />
	<set name="2002" value="47.05974854" />
	<set name="2003" value="39.8028" />
	<set name="2004" value="37.4243" />
	<set name="2005" value="35.8788" />
	<set name="2006" value="43.0222" />
	<set name="2007" value="43.1397" />
	<set name="2008" value="34.3443" />
	<set name="2009" value="8.350107" />
	<set name="2010" value="11.51" />
	<set name="2011" value="10.15" />
</graph>