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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $2,393,611 | $591,625 | $576,590 | $427,062 | $485,753 | $215,155 | $73,067 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $61,908,791 | $67,607,792 | $79,810,498 | $95,922,061 | $62,014,768 | $79,527,120 | $84,041,099 |
| Total | $64,302,402 | $68,199,417 | $80,387,088 | $96,349,123 | $62,500,521 | $79,742,275 | $84,114,166 |
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