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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $530,936 | $845,866 | $784,336 | $794,912 | $494,451 | $1,107,087 | $883,663 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $937,450 | $892,766 | $1,267,781 | $889,643 | $668,168 | $883,268 | $850,906 |
| Total | $1,468,386 | $1,738,632 | $2,052,117 | $1,684,555 | $1,162,619 | $1,990,355 | $1,734,569 |
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