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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $74,781 | $2,975 | $43,709 | $6,891 | $5,218 | $38,571 | $64,840 |
| Manganese oxides other than manganese dioxide | $39,320 | $273,262 | $54,698 | $175,772 | $157,474 | $276,399 | $300,995 |
| Total | $114,101 | $276,237 | $98,407 | $182,663 | $162,692 | $314,970 | $365,835 |
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