|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | | $94,715 | | $48,939 | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $415,575 | $623,951 | $1,283,910 | $659,866 | $581,143 | $797,460 | $1,123,854 |
| Total | $415,575 | $623,951 | $1,378,625 | $659,866 | $630,082 | $797,460 | $1,123,854 |
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