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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $14,327,645 | $28,164,544 | $42,450,474 | $40,740,884 | $32,487,964 | $31,586,186 | $30,691,671 |
| Pitch coke, obt. from coal tar/oth. min. tars | $352,398 | $4,112,593 | $1,717,702 | $193,879 | $165,882 | $197,542 | $190,942 |
| Total | $14,680,043 | $32,277,137 | $44,168,176 | $40,934,763 | $32,653,846 | $31,783,728 | $30,882,613 |
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