<graph baseFontSize="10" showvalues="0" shownames="0" rotateNames="1" 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="26.05824667" />
	<set name="1975" value="30.99189881" />
	<set name="1976" value="35.90691136" />
	<set name="1977" value="32.41552639" />
	<set name="1978" value="31.61227273" />
	<set name="1979" value="30.64367455" />
	<set name="1980" value="32.85455052" />
	<set name="1981" value="33.83380153" />
	<set name="1982" value="21.35698898" />
	<set name="1983" value="31.64273298" />
	<set name="1984" value="28.08239926" />
	<set name="1985" value="30.14790294" />
	<set name="1986" value="27.13901916" />
	<set name="1987" value="33.38579464" />
	<set name="1988" value="27.49138347" />
	<set name="1989" value="25.14112293" />
	<set name="1990" value="29.58" />
	<set name="1991" value="28.0781537" />
	<set name="1992" value="28.40623925" />
	<set name="1993" value="40.3053663" />
	<set name="1994" value="42.2773" />
	<set name="1995" value="37.53779331" />
	<set name="1996" value="28.12579088" />
	<set name="1997" value="28.45205513" />
	<set name="1998" value="26.39" />
	<set name="1999" value="15.85163383" />
	<set name="2000" value="18.707" />
	<set name="2001" value="18.4786" />
	<set name="2002" value="14.47375881" />
	<set name="2003" value="11.5141" />
	<set name="2004" value="11.3023" />
	<set name="2005" value="12.4904" />
	<set name="2006" value="13.2646" />
	<set name="2007" value="12.6287" />
	<set name="2008" value="8.0568" />
	<set name="2009" value="2.602961" />
	<set name="2010" value="2.45" />
	<set name="2011" value="2.53" />
</graph>