<graph baseFontSize="10" showvalues="0" shownames="0" xAxisName='Years (Mouse over data points to see detailed information)' yAxisName='Thousands of tons' formatNumberScale='0' zeroPlaneAlpha="0" showAlternateHGridColor='1' AlternateHGridColor='ff5904' divLineColor='ff5904' divLineAlpha='20' alternateHGridAlpha='5'>
	<set name="1974" value="2212.136686" />
	<set name="1975" value="2144.409962" />
	<set name="1976" value="2291.758757" />
	<set name="1977" value="2303.452704" />
	<set name="1978" value="1905.686931" />
	<set name="1979" value="1690.420387" />
	<set name="1980" value="1586.64051" />
	<set name="1981" value="1501.418915" />
	<set name="1982" value="1099.8771" />
	<set name="1983" value="1043.3794" />
	<set name="1984" value="948.17828" />
	<set name="1985" value="1124.31838" />
	<set name="1986" value="1167.36232" />
	<set name="1987" value="1145.23054" />
	<set name="1988" value="1226.025867" />
	<set name="1989" value="1101.335458" />
	<set name="1990" value="1095.037755" />
	<set name="1991" value="1063.414869" />
	<set name="1992" value="1125.251759" />
	<set name="1993" value="1248.528298" />
	<set name="1994" value="1123.691795" />
	<set name="1995" value="875.7371" />
	<set name="1996" value="876.588" />
	<set name="1997" value="880.1345" />
	<set name="1998" value="777.234" />
	<set name="1999" value="775.704" />
	<set name="2000" value="729.9963" />
	<set name="2001" value="608.5244" />
	<set name="2002" value="550.5749" />
	<set name="2003" value="585.0019" />
	<set name="2004" value="492.599" />
	<set name="2005" value="460.014" />
	<set name="2006" value="452.792" />
	<set name="2007" value="374.2066" />
	<set name="2008" value="335.7569" />
	<set name="2009" value="198.491566" />
	<set name="2010" value="219.80" />
	<set name="2011" value="209.83" />
</graph>