|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $251,000 | $377,000 | $388,000 | $254,000 | $238,000 | $311,000 | $265,000 |
| Manganese oxides other than manganese dioxide | $429,000 | $245,000 | $546,000 | $1,358,000 | $982,000 | $1,357,000 | $1,255,000 |
| Total | $680,000 | $622,000 | $934,000 | $1,612,000 | $1,220,000 | $1,668,000 | $1,520,000 |
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