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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $2,000 | | | $70,004 | $4,580 | $14,648 | $9,566 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | | $1,004 | $2,481 | $1,168 | $47,877 | $93,159 | $20,767 |
| Total | $2,000 | $1,004 | $2,481 | $71,172 | $52,457 | $107,807 | $30,333 |
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