|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | $94,181 | $166,971 | | $282,936 | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $177,754 | | $124,351 | $155,142 | $578,056 | $2,197,263 | $6,513,050 |
| Total | $177,754 | $94,181 | $291,322 | $155,142 | $860,992 | $2,197,263 | $6,513,050 |
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