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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $7,705,114 | $6,248,345 | $9,248,645 | $8,851,734 | $7,614,341 | $13,002,980 | $11,351,867 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $3,691,436 | $4,132,065 | $4,616,726 | $5,540,482 | $4,737,902 | $6,291,374 | $8,035,116 |
| Total | $11,396,550 | $10,380,410 | $13,865,371 | $14,392,216 | $12,352,243 | $19,294,354 | $19,386,983 |
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