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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $2,292,145 | $1,881,535 | $1,849,660 | $2,410,377 | $1,696,430 | $2,353,282 | $3,289,774 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | | | | $54,893 | $206 | $52,733 | $56,549 |
| Total | $2,292,145 | $1,881,535 | $1,849,660 | $2,465,270 | $1,696,636 | $2,406,015 | $3,346,323 |
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