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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $186 | $3,758 | $6,909 | $11,112 | $4,361 | $7,649 | $4,804 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | | $1,513 | $7,019 | $3,807 | $551 | $180 | $7,239 |
| Total | $186 | $5,271 | $13,928 | $14,919 | $4,912 | $7,829 | $12,043 |
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