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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $161,886 | $152,473 | $105,995 | $96,311 | $151,571 | $118,306 | $65,325 |
| Alkali/alkaline-earth metals other than sodium & calcium | $178,204 | $141,327 | $230,128 | $173,820 | $93,662 | $349,773 | $844,910 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $911,182 | $1,933,824 | $2,373,437 | $4,186,650 | $3,432,604 | $5,951,889 | $2,437,465 |
| Mercury | $53,205 | $572,814 | $88,491 | $1,559,604 | $42,026 | $288,554 | $53,886 |
| Total | $1,304,477 | $2,800,438 | $2,798,051 | $6,016,385 | $3,719,863 | $6,708,522 | $3,401,586 |
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