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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $36,078 | $37,761 | $20,496 | $50,961 | $57,537 | $3,205 | $57,447 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $160,922 | $170,930 | $273,504 | $369,310 | $255,464 | $158,363 | $142,329 |
| Total | $197,000 | $208,691 | $294,000 | $420,271 | $313,001 | $161,568 | $199,776 |
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