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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pitch coke, obt. from coal tar/oth. min. tars | $1,712,983 | $3,346,395 | $2,450,203 | $3,112,921 | $5,792,511 | $6,915,057 | $7,912,187 |
| Total | $1,712,983 | $3,346,395 | $2,450,203 | $3,112,921 | $5,792,511 | $6,915,057 | $7,912,187 |
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