|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $496,453 | $404,220 | $330,700 | $413,033 | $177,834 | $200,160 | $41,739 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $949,357 | $1,384,641 | $702,566 | $1,938,303 | $2,247,928 | $2,132,827 | $4,269,915 |
| Total | $1,445,810 | $1,788,861 | $1,033,266 | $2,351,336 | $2,425,762 | $2,332,987 | $4,311,654 |
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