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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $40,605 | $56,109 | $38,585 | $37,405 | $40,547 | $36,833 | $71,777 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $32,391 | $35,898 | $36,724 | $14,222 | $130,822 | $150,256 | $153,215 |
| Total | $72,996 | $92,007 | $75,309 | $51,627 | $171,369 | $187,089 | $224,992 |
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