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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $17,135 | $49,763 | $10,504 | $22,523 | $99,708 | $70,555 | $121,924 |
| Alkali/alkaline-earth metals other than sodium & calcium | $249,679 | $620,224 | $826,831 | $1,030,500 | $1,195,594 | $1,426,599 | $2,060,110 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $541 | $4,565 | $11,856 | $38,935 | $6,212 | $71,588 | $2,873 |
| Mercury | $190,896 | $138,593 | $59,379 | $41,267 | $82,255 | $2,187 | $28,779 |
| Total | $458,251 | $813,145 | $908,570 | $1,133,225 | $1,383,769 | $1,570,929 | $2,213,686 |
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