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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $1,200 | $20,400 | $100 | $5,400 | $4,700 | $42,000 | $4,900 |
| Manganese oxides other than manganese dioxide | $5,500 | $18,400 | $1,900 | $1,100 | $900 | $1,100 | $7,800 |
| Total | $6,700 | $38,800 | $2,000 | $6,500 | $5,600 | $43,100 | $12,700 |
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