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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $252,397 | $317,239 | $376,601 | $397,195 | $427,006 | $380,846 | $529,666 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $116,916 | $116,665 | $268,997 | $151,415 | $53,984 | $94,738 | $114,409 |
| Total | $369,313 | $433,904 | $645,598 | $548,610 | $480,990 | $475,584 | $644,075 |
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