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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $1,260,974 | $3,666,722 | $3,842,347 | $2,918,840 | $1,177,012 | $3,132,055 | $1,805,453 |
| Pitch coke, obt. from coal tar/oth. min. tars | $22,584,955 | $36,127,518 | $52,841,492 | $64,025,010 | $49,974,268 | $69,454,854 | $58,303,851 |
| Total | $23,845,929 | $39,794,240 | $56,683,839 | $66,943,850 | $51,151,280 | $72,586,909 | $60,109,304 |
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