<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="254.7001541" />
	<set name="1975" value="244.4993885" />
	<set name="1976" value="237.7392773" />
	<set name="1977" value="200.462586" />
	<set name="1978" value="123.5263455" />
	<set name="1979" value="97.53211519" />
	<set name="1980" value="66.25777" />
	<set name="1981" value="83.89846" />
	<set name="1982" value="16.38943" />
	<set name="1983" value="14.216045" />
	<set name="1984" value="16.17162" />
	<set name="1985" value="25.46083" />
	<set name="1986" value="25.568805" />
	<set name="1987" value="24.77745" />
	<set name="1988" value="25.14648514" />
	<set name="1989" value="27.38961731" />
	<set name="1990" value="32.021725" />
	<set name="1991" value="25.28629688" />
	<set name="1992" value="28.89365732" />
	<set name="1993" value="41.230353" />
	<set name="1994" value="35.917685" />
	<set name="1995" value="45.7752" />
	<set name="1996" value="38.4875" />
	<set name="1997" value="34.4205" />
	<set name="1998" value="37.847" />
	<set name="1999" value="45.713" />
	<set name="2000" value="52.746" />
	<set name="2001" value="42.788" />
	<set name="2002" value="43.983" />
	<set name="2003" value="44.0453" />
	<set name="2004" value="31.396" />
	<set name="2005" value="34.38" />
	<set name="2006" value="33.507" />
	<set name="2007" value="32.7235" />
	<set name="2008" value="27.903" />
	<set name="2009" value="12.861358" />
	<set name="2010" value="10.98" />
	<set name="2011" value="5.77" />
</graph>