<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="16.56585412" />
	<set name="1975" value="11.19953347" />
	<set name="1976" value="14.18223854" />
	<set name="1977" value="19.29604082" />
	<set name="1978" value="17.33454545" />
	<set name="1979" value="17.36404364" />
	<set name="1980" value="17.73343918" />
	<set name="1981" value="16.15905943" />
	<set name="1982" value="16.1751049" />
	<set name="1983" value="17.05233511" />
	<set name="1984" value="17.94561202" />
	<set name="1985" value="16.88003793" />
	<set name="1986" value="15.77101" />
	<set name="1987" value="18.42212782" />
	<set name="1988" value="17.96620103" />
	<set name="1989" value="15.77083831" />
	<set name="1990" value="18.7878" />
	<set name="1991" value="18.4201647" />
	<set name="1992" value="15.5989386" />
	<set name="1993" value="21.234102" />
	<set name="1994" value="17.6829" />
	<set name="1995" value="12.21727696" />
	<set name="1996" value="12.74676759" />
	<set name="1997" value="12.34944494" />
	<set name="1998" value="11.289" />
	<set name="1999" value="13.04919775" />
	<set name="2000" value="10.584" />
	<set name="2001" value="11.0766" />
	<set name="2002" value="11.78240048" />
	<set name="2003" value="11.8574" />
	<set name="2004" value="9.8049" />
	<set name="2005" value="8.4478" />
	<set name="2006" value="6.9331" />
	<set name="2007" value="6.0736" />
	<set name="2008" value="6.0955" />
	<set name="2009" value="4.813866" />
	<set name="2010" value="5.06" />
	<set name="2011" value="5.87" />
</graph>