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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $1,646 | $8,199 | $4,145 | $5,494 | $86 | $2,849 | $3,301 |
| Alkali/alkaline-earth metals other than sodium & calcium | $15,659 | $29 | $21,068 | $20 | $1,335 | $106 | $3,011 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $13,038 | $4,178 | $28,776 | $4,534 | $64 | $175 | $425 |
| Mercury | $26,281 | $27,576 | $46,278 | $26,737 | $39,760 | $10,771 | |
| Total | $56,624 | $39,982 | $100,267 | $36,785 | $41,245 | $13,901 | $6,737 |
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