|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $748,977 | | | | | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $45,744 | $938,479 | $1,576,613 | $1,416,783 | $837,484 | $701,712 | $2,672,548 |
| Total | $794,721 | $938,479 | $1,576,613 | $1,416,783 | $837,484 | $701,712 | $2,672,548 |
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