|
| Commodity | 2005 | 2006 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | | $1,299 | $3,803 | $9,777 | $808 | $1,410 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $1,602 | | | | | |
| Total | $1,602 | $1,299 | $3,803 | $9,777 | $808 | $1,410 |
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