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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $2,162,330 | $1,926,837 | $2,380,500 | $2,706,420 | $2,581,422 | $2,965,642 | $4,180,500 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $3,572,628 | $2,819,036 | $3,080,685 | $3,529,786 | $2,576,298 | $4,016,760 | $3,530,803 |
| Total | $5,734,958 | $4,745,873 | $5,461,185 | $6,236,206 | $5,157,720 | $6,982,402 | $7,711,303 |
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