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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Activated carbon | $4,424,480 | $4,072,349 | $4,737,507 | $4,576,618 | $4,429,120 | $2,714,502 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $3,186,152 | $3,225,094 | $3,451,479 | $3,381,336 | $3,451,707 | $3,865,778 |
| Total | $7,610,632 | $7,297,443 | $8,188,986 | $7,957,954 | $7,880,827 | $6,580,280 |
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