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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $2,022,295 | $1,435,035 | $2,020,588 | $1,280,072 | $1,735,777 | $1,573,319 | $1,059,858 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $2,922,492 | $3,094,090 | $2,905,841 | $2,758,835 | $2,144,101 | $3,188,498 | $3,020,743 |
| Total | $4,944,787 | $4,529,125 | $4,926,429 | $4,038,907 | $3,879,878 | $4,761,817 | $4,080,601 |
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