|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $108,817 | $64,672 | $499,856 | $238,997 | $19,026 | $261,666 | $65,457 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $141,785,985 | $97,781,300 | $55,515,325 | $9,544,200 | $7,267,809 | $7,816,271 | $38,519,466 |
| Total | $141,894,802 | $97,845,972 | $56,015,181 | $9,783,197 | $7,286,835 | $8,077,937 | $38,584,923 |
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