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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Petroleum coke, not calcined | $25,375,920 | $26,488,906 | $53,874,344 | $49,086,023 | $33,735,391 | $41,101,167 | $33,404,095 |
| Petroleum coke, calcined | $148,491 | $221,232 | $2,184,114 | $2,570,862 | $170,347 | $4,996,217 | $544,322 |
| Petroleum bitumen | $772,229 | $5,957,098 | $12,245,943 | $7,109,446 | $2,429,349 | $9,146,596 | $22,374,692 |
| Residues of petroleum oils/oils obt. from bituminous mins., other than petr ... | $365,074 | $7,801 | $1,946 | $24,373 | $512,840 | $57,832 | $232,123 |
| Total | $26,661,714 | $32,675,037 | $68,306,347 | $58,790,704 | $36,847,927 | $55,301,812 | $56,555,232 |
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