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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $90,333 | $125,380 | $906,635 | $1,033,088 | $229,402 | $9,216 | $6,947 |
| Manganese oxides other than manganese dioxide | $364,479 | $191,114 | $3,894 | $180,278 | $242,115 | $49,007 | $54,293 |
| Total | $454,812 | $316,494 | $910,529 | $1,213,366 | $471,517 | $58,223 | $61,240 |
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