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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Petroleum coke, not calcined | $1,942,057 | $3,168,948 | $4,661,243 | $10,724,966 | $8,020,020 |
| Petroleum coke, calcined | $4,558,129 | $5,380,805 | $6,462,769 | $7,878,128 | $5,276,313 |
| Petroleum bitumen | $514,387 | $258 | | $15 | $210,532 |
| Residues of petroleum oils/oils obt. from bituminous mins., other than petr ... | $19,681,209 | $24,607,862 | $90,020,637 | $63,381,883 | $60,749,055 |
| Total | $26,695,782 | $33,157,873 | $101,144,649 | $81,984,992 | $74,255,920 |
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