|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $63,624 | $7,001 | $103,799 | $525,674 | $391,765 | $621,442 | $866,007 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $629,614 | $797,922 | $1,896,702 | $2,466,696 | $3,286,634 | $9,303,685 | $16,749,929 |
| Total | $693,238 | $804,923 | $2,000,501 | $2,992,370 | $3,678,399 | $9,925,127 | $17,615,936 |
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