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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Activated carbon | $14,767,610 | $19,853,745 | $23,274,412 | $21,618,741 | $23,677,828 | $20,941,934 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $9,876,787 | $10,931,990 | $12,226,574 | $12,812,741 | $9,970,964 | $11,316,418 |
| Total | $24,644,397 | $30,785,735 | $35,500,986 | $34,431,482 | $33,648,792 | $32,258,352 |
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