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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $2,026 | $3,189 | $366 | $1,553 | | $562 |
| Alkali/alkaline-earth metals other than sodium & calcium | $3,282 | $1,508 | $6,109 | $1,389 | $142 | $584 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | $425 | $31 | | $1,151 | |
| Mercury | $591 | $52 | | | $220 | $77 |
| Total | $5,899 | $5,174 | $6,506 | $2,942 | $1,513 | $1,223 |
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