|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $208,892 | $292,471 | $301,923 | $349,958 | $359,497 | $19,730 | $9,471 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $4,457,168 | $4,819,331 | $10,243,631 | $13,190,020 | $26,933,246 | $12,838,609 | $9,814,586 |
| Total | $4,666,060 | $5,111,802 | $10,545,554 | $13,539,978 | $27,292,743 | $12,858,339 | $9,824,057 |
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