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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Manganese dioxide | $871,862 | $614,930 | $427,505 | $677,926 | $374,901 | $466,711 | $952,008 |
| Manganese oxides other than manganese dioxide | $92,061 | $107,155 | $150,932 | $186,436 | $92,299 | $388,477 | $598,812 |
| Total | $963,923 | $722,085 | $578,437 | $864,362 | $467,200 | $855,188 | $1,550,820 |
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