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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $2,854 | $1,757 | $102,978 | $21,333 | $62,639 | | |
| Manganese oxides other than manganese dioxide | $110,644 | $66,188 | $26,406 | $91,221 | $133,665 | $138,193 | $220,243 |
| Total | $113,498 | $67,945 | $129,384 | $112,554 | $196,304 | $138,193 | $220,243 |
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