|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $1,458 | $6,309 | $2,743 | $2,223 | $2,580 | $2,795 | $4,286 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $69 | | | | | | |
| Total | $1,527 | $6,309 | $2,743 | $2,223 | $2,580 | $2,795 | $4,286 |
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