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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $28,933,374 | $29,995,260 | $42,539,741 | $25,789,340 | $24,954,137 | $24,004,393 | $28,506,607 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $3,164,481 | $3,563,624 | $11,492,312 | $16,543,250 | $13,894,752 | $20,255,635 | $17,640,488 |
| Total | $32,097,855 | $33,558,884 | $54,032,053 | $42,332,590 | $38,848,889 | $44,260,028 | $46,147,095 |
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