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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $1,500,914 | $1,895,890 | $1,150,610 | $889,130 | $458,661 | $1,060,519 | $572,283 |
| Manganese oxides other than manganese dioxide | $106,720 | $175,878 | $369,141 | $182,243 | $194,265 | $573,454 | $237,013 |
| Total | $1,607,634 | $2,071,768 | $1,519,751 | $1,071,373 | $652,926 | $1,633,973 | $809,296 |
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