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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $17,996 | $29,454 | $12,878 | $73,620 | $11,899 | $14,573 | $41,746 |
| Alkali/alkaline-earth metals other than sodium & calcium | $3,822 | $5,506 | $5,966 | $37,451 | $17,278 | $4,155 | $40,740 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $3,535 | $25,023 | $11,994 | $156 | | $19 | $3,150 |
| Mercury | $37,501 | $17,093 | $30,596 | $26,051 | $6,293 | $44,341 | $49,617 |
| Total | $62,854 | $77,076 | $61,434 | $137,278 | $35,470 | $63,088 | $135,253 |
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