|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | | $2,990 | $2,555 | $24,347 | $4,205 | | $898 |
| Alkali/alkaline-earth metals other than sodium & calcium | $893 | | $131 | | | | |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | $8,838 | | | | | |
| Mercury | | | | $1,565 | | $555 | |
| Total | $893 | $11,828 | $2,686 | $25,912 | $4,205 | $555 | $898 |
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