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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $970 | $17,944 | $6,168 | $13,238 | $14,580 | | $1,332 |
| Manganese oxides other than manganese dioxide | $9,072 | $39,945 | $55,787 | $166,556 | $48,399 | $205,949 | $355,289 |
| Total | $10,042 | $57,889 | $61,955 | $179,794 | $62,979 | $205,949 | $356,621 |
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