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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $20,026,630 | $20,067,050 | $36,275,748 | $39,892,608 | $24,277,408 | $22,252,265 | $24,030,241 |
| Pitch coke, obt. from coal tar/oth. min. tars | $1,926,470 | $2,042,688 | $6,832,261 | $13,421,018 | $20,028,326 | $13,055,413 | $15,116,958 |
| Total | $21,953,100 | $22,109,738 | $43,108,009 | $53,313,626 | $44,305,734 | $35,307,678 | $39,147,199 |
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