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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $2,197,187 | $3,118,930 | $3,500,249 | $6,018,664 | $3,928,028 | $5,216,782 | $4,678,985 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $388,949 | $242,486 | $169,338 | $245,658 | $318,845 | $400,311 | $374,494 |
| Total | $2,586,136 | $3,361,416 | $3,669,587 | $6,264,322 | $4,246,873 | $5,617,093 | $5,053,479 |
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