|
| Commodity | 2006 | 2007 | 2009 | 2010 | 2011 |
| Sodium | $1,675 | $323 | $2,519 | $4,226 | $3,280 |
| Alkali/alkaline-earth metals other than sodium & calcium | | | | | $13,082 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | | | $14,623 | |
| Mercury | | | $226 | | |
| Total | $1,675 | $323 | $2,745 | $18,849 | $16,362 |
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