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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $1,178,267 | $1,143,083 | $1,869,344 | $2,244,471 | $2,135,066 | $2,402,712 | $2,979,532 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $3,796,727 | $4,088,232 | $3,564,486 | $4,748,814 | $5,451,675 | $7,249,916 | $7,001,318 |
| Total | $4,974,994 | $5,231,315 | $5,433,830 | $6,993,285 | $7,586,741 | $9,652,628 | $9,980,850 |
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