|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $47,200 | $377,341 | $553,837 | | | $19,550 | $95,474 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $11,241,594 | $23,008,340 | $31,967,175 | $38,879,399 | $45,340,363 | $48,409,378 | $58,633,233 |
| Total | $11,288,794 | $23,385,681 | $32,521,012 | $38,879,399 | $45,340,363 | $48,428,928 | $58,728,707 |
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