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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Pitch, obt. from coal tar/oth. min. tars | $32,554,000 | $87,143,000 | $97,566,000 | $80,565,000 |
| Pitch coke, obt. from coal tar/oth. min. tars | $5,616,000 | $4,476,000 | $4,042,000 | $4,110,000 |
| Total | $38,170,000 | $91,619,000 | $101,608,000 | $84,675,000 |
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