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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $126,696 | $127,465 | $37,927 | $1,780,589 | $1,284,543 | $835,931 | $712,264 |
| Manganese oxides other than manganese dioxide | $267,793 | $90,364 | $195,889 | $252,018 | $516,064 | $580,191 | $167,164 |
| Total | $394,489 | $217,829 | $233,816 | $2,032,607 | $1,800,607 | $1,416,122 | $879,428 |
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