|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $450 | $1,526 | $1,584 | $100 | | $154 | |
| Alkali/alkaline-earth metals other than sodium & calcium | $440 | $321 | $48 | | $612 | $1,672 | $47 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | | | | | | $4,407 |
| Mercury | $6,770 | $16,308 | $34,022 | $30,524 | $71,066 | $127,471 | $195,654 |
| Total | $7,660 | $18,155 | $35,654 | $30,624 | $71,678 | $129,297 | $200,108 |
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