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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $2,728 | $44 | $3,753 | $31 | $191 | $44 | $78,890 |
| Manganese oxides other than manganese dioxide | $57,462 | $83,447 | $123,445 | $75,082 | $112,427 | $136,414 | $164,394 |
| Total | $60,190 | $83,491 | $127,198 | $75,113 | $112,618 | $136,458 | $243,284 |
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