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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $8,877 | $41,945 | $24,458 | $1,898,944 | $240,553 | $27,649 | $88,218 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $14,947 | $3,345 | $9,254 | $5,206 | $1,014 | $3,805 | $33,218 |
| Total | $23,824 | $45,290 | $33,712 | $1,904,150 | $241,567 | $31,454 | $121,436 |
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