|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bituminous/oil shale & tar sands | $2,754 | | $661,877 | $39,822 | | $3,698 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $4,981,450 | $8,018,912 | $12,517,737 | $7,291,954 | $18,078,355 | $3,207,700 |
| Total | $4,984,204 | $8,018,912 | $13,179,614 | $7,331,776 | $18,078,355 | $3,211,398 |
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