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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $365,153 | $552,426 | $476,094 | $1,050,954 | $617,333 | $364,276 | $1,402,666 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $257,254 | $234,773 | $178,257 | $216,529 | $204,010 | $191,103 | $259,455 |
| Total | $622,407 | $787,199 | $654,351 | $1,267,483 | $821,343 | $555,379 | $1,662,121 |
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