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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $13 | $3,793 | $342 | $247 | $180 | $103 |
| Alkali/alkaline-earth metals other than sodium & calcium | $44 | $868 | $1,809 | $27 | $130 | $296 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | | $31 | $127 | $547 | $440 |
| Mercury | $5,001 | $27,981 | $2,082 | $21,811 | $6,612 | $173 |
| Total | $5,058 | $32,642 | $4,264 | $22,212 | $7,469 | $1,012 |
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