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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $26,826,525 | $31,759,081 | $41,851,039 | $43,308,821 | $28,904,200 | $27,665,345 | $38,339,341 |
| Pitch coke, obt. from coal tar/oth. min. tars | $4,674,734 | $5,022,191 | $7,063,015 | $3,705,828 | $1,916,768 | $2,380,556 | $3,666,406 |
| Total | $31,501,259 | $36,781,272 | $48,914,054 | $47,014,649 | $30,820,968 | $30,045,901 | $42,005,747 |
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