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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $4,740,731 | $4,327,407 | $5,383,724 | $7,170,405 | $5,274,589 | $6,232,818 | $6,461,763 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $2,831,780 | $4,235,843 | $4,731,441 | $5,791,680 | $3,840,578 | $3,889,886 | $4,063,504 |
| Total | $7,572,511 | $8,563,250 | $10,115,165 | $12,962,085 | $9,115,167 | $10,122,704 | $10,525,267 |
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