|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | $59,004 | | | | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $175,198 | $248,985 | $356,387 | $123,748 | $49,504 | $16,563 | $39,532 |
| Total | $175,198 | $307,989 | $356,387 | $123,748 | $49,504 | $16,563 | $39,532 |
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