<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="187.5063039" />
	<set name="1975" value="119.8732511" />
	<set name="1976" value="114.19857" />
	<set name="1977" value="169.7269222" />
	<set name="1978" value="140.6016082" />
	<set name="1979" value="125.5851787" />
	<set name="1980" value="137.55049" />
	<set name="1981" value="123.53786" />
	<set name="1982" value="125.686935" />
	<set name="1983" value="130.053725" />
	<set name="1984" value="137.09213" />
	<set name="1985" value="126.956" />
	<set name="1986" value="117.70913" />
	<set name="1987" value="140.99967" />
	<set name="1988" value="143.7205908" />
	<set name="1989" value="120.8622193" />
	<set name="1990" value="141.052095" />
	<set name="1991" value="136.6162215" />
	<set name="1992" value="108.5009533" />
	<set name="1993" value="144.0679549" />
	<set name="1994" value="116.13445" />
	<set name="1995" value="98.3645" />
	<set name="1996" value="116.6656" />
	<set name="1997" value="117.103" />
	<set name="1998" value="86.215" />
	<set name="1999" value="84.841" />
	<set name="2000" value="78.3" />
	<set name="2001" value="56.171" />
	<set name="2002" value="34.157" />
	<set name="2003" value="30.628" />
	<set name="2004" value="26.798" />
	<set name="2005" value="25.897" />
	<set name="2006" value="23.458" />
	<set name="2007" value="23.1115" />
	<set name="2008" value="23.424" />
	<set name="2009" value="19.659111" />
	<set name="2010" value="20.23" />
	<set name="2011" value="23.01" />
</graph>