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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $21,504 | $91,625 | $42,030 | $50,906 | $1,617 | $1,203 | $43,694 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $20,195 | $34,118 | $8,607 | $2,155 | $2,366 | $41,504 | $5,329 |
| Total | $41,699 | $125,743 | $50,637 | $53,061 | $3,983 | $42,707 | $49,023 |
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