|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 | 2011 |
| Alkali/alkaline-earth metals other than sodium & calcium | | $2,280 | | $4,611 | | $509 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | | $7 | | | | $331 |
| Mercury | $452,244 | | $117,806 | $246,260 | $341 | |
| Total | $452,244 | $2,287 | $117,806 | $250,871 | $341 | $840 |
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