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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch, obt. from coal tar/oth. min. tars | $15,484 | $34,813 | $61,791 | $57,066 | $113,579 | $159,204 | $169,110 |
| Pitch coke, obt. from coal tar/oth. min. tars | $15,898 | $14,130 | $14,712 | $6,378 | | | $166 |
| Total | $31,382 | $48,943 | $76,503 | $63,444 | $113,579 | $159,204 | $169,276 |
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