<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="7.93744" />
	<set name="1975" value="12.20862772" />
	<set name="1976" value="16.19270951" />
	<set name="1977" value="16.47659876" />
	<set name="1978" value="15.02242424" />
	<set name="1979" value="13.76528727" />
	<set name="1980" value="14.80529072" />
	<set name="1981" value="13.81307692" />
	<set name="1982" value="14.57056653" />
	<set name="1983" value="13.07873298" />
	<set name="1984" value="13.25445072" />
	<set name="1985" value="14.30497322" />
	<set name="1986" value="13.27014758" />
	<set name="1987" value="13.75453046" />
	<set name="1988" value="12.65386723" />
	<set name="1989" value="13.8990416" />
	<set name="1990" value="15.4101" />
	<set name="1991" value="12.9440238" />
	<set name="1992" value="16.997995" />
	<set name="1993" value="15.8149926" />
	<set name="1994" value="15.375" />
	<set name="1995" value="13.01170108" />
	<set name="1996" value="12.26151041" />
	<set name="1997" value="11.26584571" />
	<set name="1998" value="10.361" />
	<set name="1999" value="11.87344622" />
	<set name="2000" value="10.762" />
	<set name="2001" value="10.2683" />
	<set name="2002" value="10.23360178" />
	<set name="2003" value="10.6211" />
	<set name="2004" value="10.7172" />
	<set name="2005" value="9.6211" />
	<set name="2006" value="9.69" />
	<set name="2007" value="8.5689" />
	<set name="2008" value="8.649" />
	<set name="2009" value="4.845131" />
	<set name="2010" value="4.86" />
	<set name="2011" value="3.10" />
</graph>