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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $6 | $335 | $5,535 | $499 | $7,914 | $295,016 |
| Alkali/alkaline-earth metals other than sodium & calcium | $27,552 | $10,692 | $1,567 | $62 | $13,660 | $4,231 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $4 | $5,361 | $2,456 | | $18,262 | |
| Mercury | $7,547 | $204,791 | $253,396 | $113,960 | $412,805 | $313,890 |
| Total | $35,109 | $221,179 | $262,954 | $114,521 | $452,641 | $613,137 |
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