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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $1,867,298 | $1,644,285 | $2,300,389 | $3,747,983 | $4,740,943 | $4,075,473 | $4,919,354 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $1,129,638 | $2,062,322 | $3,091,803 | $2,955,582 | $4,077,993 | $4,678,623 | $4,583,621 |
| Total | $2,996,936 | $3,706,607 | $5,392,192 | $6,703,565 | $8,818,936 | $8,754,096 | $9,502,975 |
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