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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $32,031 | $69,283 | $132,020 | $234,934 | $223,662 | $201,793 | $205,623 |
| Pitch coke, obt. from coal tar/oth. min. tars | $154,203 | $87,562 | $21,539 | | $10,663 | | $2,284 |
| Total | $186,234 | $156,845 | $153,559 | $234,934 | $234,325 | $201,793 | $207,907 |
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