|
| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $652 | $2,639 | $3,647 | $3,636 | $1,264 | $17,959 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | | | | | $57 | |
| Total | $652 | $2,639 | $3,647 | $3,636 | $1,321 | $17,959 |
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