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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Manganese dioxide | $71,200 | $86,100 | $145,145 | $133,280 | $1,066,957 | $330,970 |
| Manganese oxides other than manganese dioxide | $131,316 | $114,275 | | $45,340 | $970,342 | $5,392,792 |
| Total | $202,516 | $200,375 | $145,145 | $178,620 | $2,037,299 | $5,723,762 |
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