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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $24,243,082 | $37,200,567 | $47,270,791 | $52,499,191 | $41,867,780 | $59,212,068 | $50,623,700 |
| Pitch coke, obt. from coal tar/oth. min. tars | $7,031,540 | $19,030,042 | $9,629,606 | $6,855,207 | $6,202,070 | $5,021,663 | $9,638,491 |
| Total | $31,274,622 | $56,230,609 | $56,900,397 | $59,354,398 | $48,069,850 | $64,233,731 | $60,262,191 |
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