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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $2,757,052 | $1,816,760 | $2,642,643 | $2,338,762 | $1,858,211 | $2,220,978 | $2,316,886 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $144,692 | $139,469 | $125,035 | $172,301 | $170,745 | $181,219 | $198,291 |
| Total | $2,901,744 | $1,956,229 | $2,767,678 | $2,511,063 | $2,028,956 | $2,402,197 | $2,515,177 |
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