|
| Commodity | 2005 | 2006 | 2007 | 2009 | 2010 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $11,793 | $6,593 | $12,914 | $12,558 | $30,665 | $17,638 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | | | | | | $2,741 |
| Total | $11,793 | $6,593 | $12,914 | $12,558 | $30,665 | $20,379 |
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