|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Sodium | $5,436 | | $8,248 | $70,183 |
| Alkali/alkaline-earth metals other than sodium & calcium | $79,818 | $2,359 | $14,193 | $37,768 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $6 | | | |
| Mercury | $65 | $132 | $169 | |
| Total | $85,325 | $2,491 | $22,610 | $107,951 |
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