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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $13,952 | $8,029 | $6,021 | $97,921 | $27,086 | $24,923 | $12,754 |
| Alkali/alkaline-earth metals other than sodium & calcium | $3,688 | $8,586 | $4,232 | $42,443 | $30,371 | $566 | $3,228 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $1,871 | $120 | $78 | | | | |
| Mercury | $64,823 | $49,679 | $25,340 | $148,395 | $150,000 | $273,888 | $328,677 |
| Total | $84,334 | $66,414 | $35,671 | $288,759 | $207,457 | $299,377 | $344,659 |
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