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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | | | $149,856 | $16,740,647 | $1,383,290 | $10,187,095 |
| Pitch coke, obt. from coal tar/oth. min. tars | $15,261 | $187,946 | | | | |
| Total | $15,261 | $187,946 | $149,856 | $16,740,647 | $1,383,290 | $10,187,095 |
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