|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $58,298 | $57,842 | $18,953 | $2,009 | $2,840 | $2,501,469 | $8,319 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $4,867,137 | $4,508,339 | $9,718,305 | $17,693,965 | $15,355,231 | $14,374,115 | $16,697,280 |
| Total | $4,925,435 | $4,566,181 | $9,737,258 | $17,695,974 | $15,358,071 | $16,875,584 | $16,705,599 |
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