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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $5,867,964 | $5,702,608 | $6,198,356 | $7,883,541 | $6,325,385 | $7,677,202 | $8,346,161 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $2,599,307 | $2,976,296 | $3,182,130 | $4,004,658 | $2,993,830 | $3,504,828 | $4,677,458 |
| Total | $8,467,271 | $8,678,904 | $9,380,486 | $11,888,199 | $9,319,215 | $11,182,030 | $13,023,619 |
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