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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $3,685,471 | $4,390,832 | $6,840,722 | $9,523,674 | $8,621,421 | $7,695,927 | $8,291,900 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $4,718,434 | $5,515,169 | $8,084,463 | $6,820,527 | $5,322,136 | $5,631,701 | $7,342,752 |
| Total | $8,403,905 | $9,906,001 | $14,925,185 | $16,344,201 | $13,943,557 | $13,327,628 | $15,634,652 |
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