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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $29,749,441 | $25,416,557 | $27,563,717 | $32,158,726 | $26,501,598 | $41,406,642 | $43,164,019 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $11,971,335 | $12,376,810 | $18,708,584 | $17,570,318 | $22,963,254 | $30,359,307 | $32,343,593 |
| Total | $41,720,776 | $37,793,367 | $46,272,301 | $49,729,044 | $49,464,852 | $71,765,949 | $75,507,612 |
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