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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $1,131,127 | $1,533,742 | $2,702,323 | $5,131,460 | $4,117,290 | $4,951,994 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $2,033 | $281 | | | $1,886 | $2,562 |
| Total | $1,133,160 | $1,534,023 | $2,702,323 | $5,131,460 | $4,119,176 | $4,954,556 |
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