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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $273,948 | $305,389 | $562,719 | $311,130 | $263,991 | $231,608 | $282,508 |
| Manganese oxides other than manganese dioxide | $144,669 | $234,162 | $409,030 | $590,311 | $253,527 | $438,123 | $425,516 |
| Total | $418,617 | $539,551 | $971,749 | $901,441 | $517,518 | $669,731 | $708,024 |
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