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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $906,633 | $5,783,082 | $9,311,882 | $2,112,936 | $3,948,129 | $8,858,705 | $5,622,430 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | | | | $277,985 | | | |
| Total | $906,633 | $5,783,082 | $9,311,882 | $2,390,921 | $3,948,129 | $8,858,705 | $5,622,430 |
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