|
| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $483 | | | $19 | $6,054 | $4,484 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $283 | $1,048 | $15 | $30,489 | | $22 |
| Total | $766 | $1,048 | $15 | $30,508 | $6,054 | $4,506 |
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