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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $393,971 | $268,575 | $237,355 | $4,446,261 | $2,070,237 | $4,082,196 | $2,435,319 |
| Alkali/alkaline-earth metals other than sodium & calcium | $355,985 | $393,088 | $334,084 | $3,796,670 | $3,264,256 | $6,418,904 | $7,677,543 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $300 | | $4,100 | $117,483 | $1,578 | $17,800 | |
| Mercury | $56,458 | $91,821 | $35,402 | $152,641 | $167,838 | $470,293 | $476,411 |
| Total | $806,714 | $753,484 | $610,941 | $8,513,055 | $5,503,909 | $10,989,193 | $10,589,273 |
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