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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $3,872,444 | $2,624,060 | $2,933,624 | $2,891,792 | $3,227,742 | $2,141,997 | $2,512,591 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $2,705,799 | $2,312,382 | $3,088,201 | $4,540,813 | $3,986,038 | $4,878,416 | $4,739,105 |
| Total | $6,578,243 | $4,936,442 | $6,021,825 | $7,432,605 | $7,213,780 | $7,020,413 | $7,251,696 |
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