<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="203.773692" />
	<set name="1975" value="199.6667876" />
	<set name="1976" value="213.3524622" />
	<set name="1977" value="219.1334445" />
	<set name="1978" value="205.6826474" />
	<set name="1979" value="193.4334267" />
	<set name="1980" value="135.23488" />
	<set name="1981" value="137.92349" />
	<set name="1982" value="70.784895" />
	<set name="1983" value="74.27136" />
	<set name="1984" value="65.2547" />
	<set name="1985" value="93.66046" />
	<set name="1986" value="98.8987" />
	<set name="1987" value="89.876175" />
	<set name="1988" value="92.2390385" />
	<set name="1989" value="70.43142729" />
	<set name="1990" value="86.9693" />
	<set name="1991" value="73.34006603" />
	<set name="1992" value="85.63336307" />
	<set name="1993" value="113.7074977" />
	<set name="1994" value="115.660845" />
	<set name="1995" value="114.6771" />
	<set name="1996" value="126.3665" />
	<set name="1997" value="115.938" />
	<set name="1998" value="114.589" />
	<set name="1999" value="119.778" />
	<set name="2000" value="118.423" />
	<set name="2001" value="94.189" />
	<set name="2002" value="108.788" />
	<set name="2003" value="100.017" />
	<set name="2004" value="95.675" />
	<set name="2005" value="74.598" />
	<set name="2006" value="86.792" />
	<set name="2007" value="64.993" />
	<set name="2008" value="50.797" />
	<set name="2009" value="32.006075" />
	<set name="2010" value="40.6" />
	<set name="2011" value="36.58" />
	
</graph>