|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $22,997 | $8,602 | $26,399 | $37,227 | $49,664 | $66,760 |
| Alkali/alkaline-earth metals other than sodium & calcium | $32,048 | $14,924 | $6,184 | $46,176 | $22,030 | $46,279 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | $542 | $3,669 | $2,627 | $22 | $3,070 |
| Mercury | $570 | $5,089 | $1,687 | $2,701 | $41 | $995 |
| Total | $55,615 | $29,157 | $37,939 | $88,731 | $71,757 | $117,104 |
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