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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $23,306 | $22,313 | $63,015 | $124,370 | $21,433 | $291,724 | $130,248 |
| Manganese oxides other than manganese dioxide | $50,798 | $403,263 | $174,771 | $127,320 | $58,753 | $5,465 | $75,251 |
| Total | $74,104 | $425,576 | $237,786 | $251,690 | $80,186 | $297,189 | $205,499 |
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