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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $22,518 | $15,207 | $17,043 | $64,628 | $32,751 | $37,672 | $110,338 |
| Manganese oxides other than manganese dioxide | $255,876 | $409,048 | $616,205 | $1,416,433 | $983,894 | $1,320,552 | $1,434,204 |
| Total | $278,394 | $424,255 | $633,248 | $1,481,061 | $1,016,645 | $1,358,224 | $1,544,542 |
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