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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Activated carbon | $10,066 | $30,392 | $4,047 | $13,679 | $38,768 | $25,744 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $2,336 | | | | | $2,400 |
| Total | $12,402 | $30,392 | $4,047 | $13,679 | $38,768 | $28,144 |
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