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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 |
| Petroleum coke, not calcined | $1,997,871 | $3,469,029 | $4,631,260 | | $6,986 |
| Petroleum coke, calcined | $1,539,098 | $664,432 | $186,748 | $1,045,849 | $52,404 |
| Petroleum bitumen | $34,377,587 | $49,360,091 | $74,362,449 | $27,570,016 | $88,737,781 |
| Residues of petroleum oils/oils obt. from bituminous mins., other than petr ... | $43,772,428 | $306 | $19,131 | $58,573 | $2,995,369 |
| Total | $81,686,984 | $53,493,858 | $79,199,588 | $28,674,438 | $91,792,540 |
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