|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $1,839 | | | | | $281,896 | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $56,226,033 | $40,786,487 | $2,539,744 | $3,127,775 | $2,588,529 | $2,987,957 | $3,397,814 |
| Total | $56,227,872 | $40,786,487 | $2,539,744 | $3,127,775 | $2,588,529 | $3,269,853 | $3,397,814 |
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