|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $200 | $700 | $4,206 | $3,654 | | | |
| Alkali/alkaline-earth metals other than sodium & calcium | $4,693 | $444 | $2,664 | | $3,130 | $1,941 | $16,691 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | | | $42 | | | |
| Mercury | | | | $829 | | $1,232 | $120 |
| Total | $4,893 | $1,144 | $6,870 | $4,525 | $3,130 | $3,173 | $16,811 |
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