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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Manganese dioxide | $285,516 | $183,107 | $12,280 | $285,402 | $240,010 | $233,769 |
| Manganese oxides other than manganese dioxide | $119,192 | $252,090 | $388,083 | $373,816 | $327,992 | $648,312 |
| Total | $404,708 | $435,197 | $400,363 | $659,218 | $568,002 | $882,081 |
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