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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $1,529 | | $3,391 | $2,830 | $1,001 | $8,605 | $59,860 |
| Manganese oxides other than manganese dioxide | $31,837 | $117,601 | $109,590 | $117,524 | $305,185 | $212,055 | $151,076 |
| Total | $33,366 | $117,601 | $112,981 | $120,354 | $306,186 | $220,660 | $210,936 |
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