<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="59.49575059" />
	<set name="1975" value="52.40436594" />
	<set name="1976" value="64.59832027" />
	<set name="1977" value="62.72065485" />
	<set name="1978" value="61.13272727" />
	<set name="1979" value="62.07722182" />
	<set name="1980" value="63.90701443" />
	<set name="1981" value="55.77030908" />
	<set name="1982" value="51.7753102" />
	<set name="1983" value="79.54290638" />
	<set name="1984" value="72.1610738" />
	<set name="1985" value="82.36477531" />
	<set name="1986" value="83.75163843" />
	<set name="1987" value="76.73069241" />
	<set name="1988" value="83.13034111" />
	<set name="1989" value="78.62767831" />
	<set name="1990" value="79.9914" />
	<set name="1991" value="82.5153516" />
	<set name="1992" value="136.6299682" />
	<set name="1993" value="100.7439828" />
	<set name="1994" value="85.71355" />
	<set name="1995" value="173.8366912" />
	<set name="1996" value="139.373604" />
	<set name="1997" value="160.0379874" />
	<set name="1998" value="119.059" />
	<set name="1999" value="80.89856318" />
	<set name="2000" value="52.099" />
	<set name="2001" value="50.7401" />
	<set name="2002" value="49.93874407" />
	<set name="2003" value="33.6095" />
	<set name="2004" value="35.0392" />
	<set name="2005" value="27.186" />
	<set name="2006" value="34.3597" />
	<set name="2007" value="32.8034" />
	<set name="2008" value="30.6807" />
	<set name="2009" value="5.34788" />
	<set name="2010" value="4.89" />
	<set name="2011" value="4.76" />
</graph>