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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Activated carbon | $25,846 | $21,195 | $24,934 | $9,163 | $12,966 | $35,966 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $6,354 | $7,655 | $15,281 | $211 | $2,925 | $12,552 |
| Total | $32,200 | $28,850 | $40,215 | $9,374 | $15,891 | $48,518 |
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