|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Sodium | | $2,406 | | $3,773 | $8,956 |
| Alkali/alkaline-earth metals other than sodium & calcium | $458 | | | | $85 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $789 | | | $130 | $9,121 |
| Mercury | | $1,497 | $338 | $2,796 | |
| Total | $1,247 | $3,903 | $338 | $6,699 | $18,162 |
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