|
| Commodity | 2005 | 2006 | 2008 | 2011 |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $20 | $2,414 | | |
| Natural barium carbonate (witherite), whether or not calcined, other than b ... | $6,697 | $27 | $525 | $26,384 |
| Total | $6,717 | $2,441 | $525 | $26,384 |
|
|
