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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $13,550 | $275 | $298 | $4,405 | $4,021 | $10,010 | $13,990 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $15 | $17,552 | | $1,795 | $19,279 | | $106 |
| Total | $13,565 | $17,827 | $298 | $6,200 | $23,300 | $10,010 | $14,096 |
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