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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $49 | $7,437 | $2,934 | $14,850 | $10,292 | $32,130 | $233 |
| Manganese oxides other than manganese dioxide | $78,607 | $94,943 | $108,632 | $88,763 | $187,893 | $147,970 | $204,545 |
| Total | $78,656 | $102,380 | $111,566 | $103,613 | $198,185 | $180,100 | $204,778 |
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