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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $1,925,095 | $2,592,422 | $2,535,231 | $3,127,431 | $1,632,543 | $1,803,938 | $2,095,986 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $653,117 | $764,055 | $1,664,333 | $1,772,218 | $2,206,017 | $820,242 | $384,744 |
| Total | $2,578,212 | $3,356,477 | $4,199,564 | $4,899,649 | $3,838,560 | $2,624,180 | $2,480,730 |
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