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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $15,361,428 | $16,120,903 | $15,493,435 | $16,749,509 | $21,595,388 | $24,259,969 | $29,302,926 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $8,311,071 | $10,143,370 | $9,036,578 | $11,421,669 | $7,793,403 | $12,219,082 | $16,417,463 |
| Total | $23,672,499 | $26,264,273 | $24,530,013 | $28,171,178 | $29,388,791 | $36,479,051 | $45,720,389 |
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