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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $600,238 | $94,320 | $51,628 | $138,687 | $182,030 | $144,820 | $125,772 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $110,624 | $72,987 | $75,783 | $59,256 | $18,949 | $147,578 | $59,180 |
| Total | $710,862 | $167,307 | $127,411 | $197,943 | $200,979 | $292,398 | $184,952 |
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