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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $2,456,388 | $3,218,611 | $3,079,052 | $2,509,006 | $999,226 | $4,366,242 | $6,598,727 |
| Pitch coke, obt. from coal tar/oth. min. tars | $55,918 | $12,073 | $2,909 | $273,151 | $602,490 | $929,431 | $3,109,038 |
| Total | $2,512,306 | $3,230,684 | $3,081,961 | $2,782,157 | $1,601,716 | $5,295,673 | $9,707,765 |
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