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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $759 | $48,000 | $247,315 | | | | |
| Alkali/alkaline-earth metals other than sodium & calcium | $450 | | $2,870 | $230,000 | | | |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $68,267 | $255,297 | $412,999 | $33,140 | $448,887 | $321,133 | $291,575 |
| Total | $69,476 | $303,297 | $663,184 | $263,140 | $448,887 | $321,133 | $291,575 |
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