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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $18,713,620 | $21,422,245 | $30,186,918 | $41,472,688 | $49,655,879 | $56,995,086 | $68,772,645 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $10,493,722 | $10,389,539 | $15,015,466 | $21,056,620 | $22,189,051 | $29,208,574 | $28,876,029 |
| Total | $29,207,342 | $31,811,784 | $45,202,384 | $62,529,308 | $71,844,930 | $86,203,660 | $97,648,674 |
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