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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $1,534,311 | $1,401,920 | $2,854,021 | $2,792,423 | $2,427,628 | $3,012,118 | $3,137,836 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $2,042,393 | $1,276,288 | $1,410,997 | $2,507,489 | $2,691,027 | $2,528,044 | $2,847,717 |
| Total | $3,576,704 | $2,678,208 | $4,265,018 | $5,299,912 | $5,118,655 | $5,540,162 | $5,985,553 |
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