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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $5,834,122 | $9,289,650 | $10,365,901 | $13,472,107 | $14,785,535 | $18,710,421 | $26,343,417 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $12,353,280 | $17,994,227 | $15,325,215 | $17,332,696 | $13,767,934 | $12,486,086 | $19,576,950 |
| Total | $18,187,402 | $27,283,877 | $25,691,116 | $30,804,803 | $28,553,469 | $31,196,507 | $45,920,367 |
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