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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $20,055,051 | $20,583,624 | $29,417,731 | $30,805,723 | $29,943,315 | $41,194,221 | $54,078,118 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $23,961,818 | $24,835,035 | $20,403,966 | $24,662,382 | $17,368,768 | $24,417,433 | $24,846,719 |
| Total | $44,016,869 | $45,418,659 | $49,821,697 | $55,468,105 | $47,312,083 | $65,611,654 | $78,924,837 |
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