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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | | | $63,792,589 | $86,953,323 | $86,883,245 | $94,823,250 | $102,101,307 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $20,477,041 | $24,209,482 | $23,943,134 | $28,291,304 | $27,728,723 | $33,850,989 | $32,276,932 |
| Total | $20,477,041 | $24,209,482 | $87,735,723 | $115,244,627 | $114,611,968 | $128,674,239 | $134,378,239 |
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