|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | | | | | $22,800 | $13,494 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $15,610 | $45,340 | $31,349 | $19,697 | $750 | $56,480 | $754 |
| Total | $15,610 | $45,340 | $31,349 | $19,697 | $750 | $79,280 | $14,248 |
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