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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Pitch, obt. from coal tar/oth. min. tars | $20,385,501 | $25,673,713 | $35,973,822 | $34,939,318 | $24,425,626 | $19,300,544 |
| Pitch coke, obt. from coal tar/oth. min. tars | $681,257 | $1,417,105 | $9,587,072 | $10,335,036 | $2,075,571 | $5,142,658 |
| Total | $21,066,758 | $27,090,818 | $45,560,894 | $45,274,354 | $26,501,197 | $24,443,202 |
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