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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $973 | $503 | $300 | $246 | $4,578 | $978 |
| Alkali/alkaline-earth metals other than sodium & calcium | $720 | $371 | $481 | $2,104 | $3,513 | $1,580 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | $464 | | | | $46 |
| Mercury | $208 | $153 | $995 | $656 | $1,235 | $2,483 |
| Total | $1,901 | $1,491 | $1,776 | $3,006 | $9,326 | $5,087 |
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