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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $1,397 | | | | $12,763 | $415 | $4,889 |
| Alkali/alkaline-earth metals other than sodium & calcium | $21,983 | $20,956 | $17,481 | $61,877 | $13,214 | $17,504 | $45,778 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $5,510 | | | | $2,968 | $24,106 | $17,493 |
| Mercury | $88,466 | $83,457 | $78,845 | $117,713 | $88,746 | $92,408 | $167,611 |
| Total | $117,356 | $104,413 | $96,326 | $179,590 | $117,691 | $134,433 | $235,771 |
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