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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $72,215 | $7,218 | $290,806 | $214,843 | $268,360 | $112,382 | $325,606 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $11,110 | $17,030 | $47,936 | $54,258 | $63,427 | $52,482 | $177,298 |
| Total | $83,325 | $24,248 | $338,742 | $269,101 | $331,787 | $164,864 | $502,904 |
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