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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $49,406 | $46,486 | $105,069 | $150,202 | $93,241 | $248,425 | $173,927 |
| Alkali/alkaline-earth metals other than sodium & calcium | $57,346 | $71,830 | $212,936 | $111,118 | $23,407 | $53,553 | $62,951 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $51,744 | $182,248 | $496,581 | $7,468 | $205,156 | $253,955 | $979,767 |
| Mercury | $394,744 | $163,006 | $218,797 | $299,328 | $208,953 | $141,348 | $581,359 |
| Total | $553,240 | $463,570 | $1,033,383 | $568,116 | $530,757 | $697,281 | $1,798,004 |
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