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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Activated carbon | $36,127,241 | $38,816,988 | $40,963,633 | $47,703,068 | $42,827,775 | $49,777,993 | $58,372,473 |
| Activated nat. min. prods. other than of activated carbon; animal black, in ... | $18,428,596 | $17,957,314 | $22,521,506 | $25,419,292 | $17,436,381 | $24,340,140 | $24,776,590 |
| Total | $54,555,837 | $56,774,302 | $63,485,139 | $73,122,360 | $60,264,156 | $74,118,133 | $83,149,063 |
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