|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | | $10,943 | $18,736 | $12,018 | | $8,691 | $7,783 |
| Alkali/alkaline-earth metals other than sodium & calcium | $3,908 | $3,552 | $1,971 | | $2,731 | $394 | |
| Mercury | $3,617 | $32,076 | $74,387 | $53,053 | $124,513 | $51,406 | $334,945 |
| Total | $7,525 | $46,571 | $95,094 | $65,071 | $127,244 | $60,491 | $342,728 |
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