|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | | $3,541 | $24,089 | $51,189 | $18,371 | $24,813 | $29,719 |
| Alkali/alkaline-earth metals other than sodium & calcium | | $4,799 | | | | | |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $104,887 | | | | | | |
| Mercury | | | $4,658 | | $9,621 | $952 | |
| Total | $104,887 | $8,340 | $28,747 | $51,189 | $27,992 | $25,765 | $29,719 |
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