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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $82,817 | $147,655 | $16,380 | $21,471 | $4,256 | $11,274 | $4,886 |
| Manganese oxides other than manganese dioxide | $130,048 | $84,493 | $62,534 | $194,627 | $68,254 | $123,449 | $83,462 |
| Total | $212,865 | $232,148 | $78,914 | $216,098 | $72,510 | $134,723 | $88,348 |
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