<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="35.49827648" />
	<set name="1975" value="30.83062044" />
	<set name="1976" value="81.51850746" />
	<set name="1977" value="83.59143847" />
	<set name="1978" value="36.65421005" />
	<set name="1979" value="37.63921917" />
	<set name="1980" value="39.52821" />
	<set name="1981" value="45.04027" />
	<set name="1982" value="31.51808" />
	<set name="1983" value="26.7204" />
	<set name="1984" value="37.61382" />
	<set name="1985" value="31.07464" />
	<set name="1986" value="31.99672" />
	<set name="1987" value="34.978575" />
	<set name="1988" value="28.80480181" />
	<set name="1989" value="38.02530735" />
	<set name="1990" value="47.148" />
	<set name="1991" value="39.24669938" />
	<set name="1992" value="36.9373032" />
	<set name="1993" value="54.5762022" />
	<set name="1994" value="47.6182" />
	<set name="1995" value="51.1108" />
	<set name="1996" value="45.415" />
	<set name="1997" value="66.751" />
	<set name="1998" value="55.309" />
	<set name="1999" value="38.179" />
	<set name="2000" value="39.6393" />
	<set name="2001" value="46.5364" />
	<set name="2002" value="45.6059" />
	<set name="2003" value="44.4486" />
	<set name="2004" value="28.606" />
	<set name="2005" value="37.534" />
	<set name="2006" value="27.987" />
	<set name="2007" value="40.0075" />
	<set name="2008" value="28.2869" />
	<set name="2009" value="0.466594" />
	<set name="2010" value=".890" />
	<set name="2011" value="0.57" />
</graph>