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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $2,324 | $1,014 | | $699 | $1,480 | $7,686 |
| Alkali/alkaline-earth metals other than sodium & calcium | | | $12,716 | | $5,429 | $4,095 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $431 | | | $3,420 | | $1,250 |
| Mercury | $3,457 | | $195,025 | $2,000 | $2,538 | $252,531 |
| Total | $6,212 | $1,014 | $207,741 | $6,119 | $9,447 | $265,562 |
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