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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Petroleum coke, not calcined | $7,582,369 | $10,915,630 | $13,768,232 | $26,742,395 | $11,596,864 | $16,784,508 | $10,667,456 |
| Petroleum coke, calcined | | | | $921,179 | | | $741,307 |
| Petroleum bitumen | $7,265,608 | $12,559,945 | $14,940,128 | $20,451,000 | $23,960,879 | $31,604,629 | $36,592,467 |
| Residues of petroleum oils/oils obt. from bituminous mins., other than petr ... | | | $4,447 | | | $1,330 | |
| Total | $14,847,977 | $23,475,575 | $28,712,807 | $48,114,574 | $35,557,743 | $48,390,467 | $48,001,230 |
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