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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $1,194,502 | $821,128 | $1,369,780 | $3,848,756 | $1,558,675 | $1,532,251 | $3,869,555 |
| Alkali/alkaline-earth metals other than sodium & calcium | $2,410,157 | $2,371,730 | $1,515,268 | $2,761,320 | $2,587,151 | $1,951,101 | $5,459,954 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $1,826,593 | $3,005,781 | $3,759,347 | $5,627,259 | $4,463,669 | $4,354,190 | $5,770,242 |
| Mercury | $288,671 | $259,898 | $516,069 | $396,369 | $363,645 | $213,402 | $133,577 |
| Total | $5,719,923 | $6,458,537 | $7,160,464 | $12,633,704 | $8,973,140 | $8,050,944 | $15,233,328 |
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