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| Commodity | 2005 | 2007 | 2008 |
| Sodium | $404,178 | $157,888 | $267,062 |
| Alkali/alkaline-earth metals other than sodium & calcium | $2,181,848 | $2,515,639 | $1,888,309 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $57,678 | $89,188 | $361,346 |
| Mercury | $123,563 | $101,546 | $56,308 |
| Total | $2,767,267 | $2,864,261 | $2,573,025 |
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