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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $11,012 | $1,093 | $2,880 | $75 | $15,714 | $239 | $24,929 |
| Alkali/alkaline-earth metals other than sodium & calcium | $42,287 | $11,088 | $24,158 | $64,277 | $4,437 | $23,050 | $21,592 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | | | | $196 | $409 | $2,531 |
| Mercury | $236 | | $228 | $587 | | | $2,807 |
| Total | $53,535 | $12,181 | $27,266 | $64,939 | $20,347 | $23,698 | $51,859 |
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