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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | | $143 | $31 | $142 | $132,385 | $6,308 | $63 |
| Manganese oxides other than manganese dioxide | $3,156 | $12,787 | $13,217 | $82,640 | $70,944 | $71,065 | $62,870 |
| Total | $3,156 | $12,930 | $13,248 | $82,782 | $203,329 | $77,373 | $62,933 |
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