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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $91,907 | $26,124 | $803 | $83,165 | | $14,444 | $34,341 |
| Manganese oxides other than manganese dioxide | $9,846 | $36,522 | $36,785 | $61,743 | $13,440 | $26,448 | $18,632 |
| Total | $101,753 | $62,646 | $37,588 | $144,908 | $13,440 | $40,892 | $52,973 |
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