|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $73,182 | $95,759 | $205,857 | $199,551 | $434,225 | $367,090 | $1,679,227 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $27,768,060 | $28,300,831 | $19,292,338 | $20,676,212 | $25,111,920 | $25,335,381 | $27,259,873 |
| Total | $27,841,242 | $28,396,590 | $19,498,195 | $20,875,763 | $25,546,145 | $25,702,471 | $28,939,100 |
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