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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $15,528,545 | $20,221,374 | $25,628,633 | $32,777,977 | $23,961,726 | $40,591,121 | $41,497,170 |
| Pitch coke, obt. from coal tar/oth. min. tars | $763,348 | $14,577,957 | $7,148,882 | $45,840 | $30,587 | | |
| Total | $16,291,893 | $34,799,331 | $32,777,515 | $32,823,817 | $23,992,313 | $40,591,121 | $41,497,170 |
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