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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $1,417 | $1,437 | $75,959 | $129,759 | $6,914 | $10,888 | $1,016 |
| Manganese oxides other than manganese dioxide | $235,808 | $352,755 | $576,277 | $915,325 | $374,122 | $38,530 | $96,992 |
| Total | $237,225 | $354,192 | $652,236 | $1,045,084 | $381,036 | $49,418 | $98,008 |
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