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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $88,791 | $14,191 | $32,703 | $74,268 | $100,387 | $37,346 | $8,360 |
| Manganese oxides other than manganese dioxide | $70,056 | $95 | $79,536 | $349,420 | $29,947 | $23,648 | $54,774 |
| Total | $158,847 | $14,286 | $112,239 | $423,688 | $130,334 | $60,994 | $63,134 |
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