|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $321 | | $59 | $382 | $536 | $938 | $17 |
| Alkali/alkaline-earth metals other than sodium & calcium | $18,576 | $85 | | | $1,381 | $4 | $86 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $1,141 | | $24 | $934 | $1,162 | | |
| Mercury | $488 | $1,093 | $1,274 | $650 | $54 | $330 | |
| Total | $20,526 | $1,178 | $1,357 | $1,966 | $3,133 | $1,272 | $103 |
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