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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $1,048,064 | $783,499 | $747,375 | $840,245 | $463,355 | $953,280 | $755,723 |
| Manganese oxides other than manganese dioxide | $155,807 | $167,198 | $42,701 | $21,075 | $20,841 | $4,911 | $11,849 |
| Total | $1,203,871 | $950,697 | $790,076 | $861,320 | $484,196 | $958,191 | $767,572 |
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