|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | | | | $197,141 | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $110 | $17,450 | $995,489 | $2,791,457 | $721,151 | $48,872 | $4,010 |
| Total | $110 | $17,450 | $995,489 | $2,791,457 | $918,292 | $48,872 | $4,010 |
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