<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="248.4802117" />
	<set name="1975" value="280.7496476" />
	<set name="1976" value="283.1166395" />
	<set name="1977" value="278.6314324" />
	<set name="1978" value="173.427849" />
	<set name="1979" value="134.1000996" />
	<set name="1980" value="113.82074" />
	<set name="1981" value="66.384115" />
	<set name="1982" value="56.171465" />
	<set name="1983" value="56.036045" />
	<set name="1984" value="47.04615" />
	<set name="1985" value="57.173515" />
	<set name="1986" value="47.006745" />
	<set name="1987" value="56.78416" />
	<set name="1988" value="47.28310748" />
	<set name="1989" value="45.43603863" />
	<set name="1990" value="47.168645" />
	<set name="1991" value="42.19472995" />
	<set name="1992" value="44.38080655" />
	<set name="1993" value="67.89909358" />
	<set name="1994" value="54.27163" />
	<set name="1995" value="67.6478" />
	<set name="1996" value="45.886" />
	<set name="1997" value="38.297" />
	<set name="1998" value="34.056" />
	<set name="1999" value="35.875" />
	<set name="2000" value="34.087" />
	<set name="2001" value="31.428" />
	<set name="2002" value="35.577" />
	<set name="2003" value="35.513" />
	<set name="2004" value="33.884" />
	<set name="2005" value="36.231" />
	<set name="2006" value="35.815" />
	<set name="2007" value="36.305" />
	<set name="2008" value="36.623" />
	<set name="2009" value="27.421501" />
	<set name="2010" value="28.18" />
	<set name="2011" value="27.77" />
</graph>