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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $361,161 | $75,866 | $73,397 | $113,308 | $42,388 | $144,990 | $198,265 |
| Alkali/alkaline-earth metals other than sodium & calcium | $1,498,993 | $1,956,140 | $2,661,050 | $1,834,607 | $3,185,737 | $6,989,083 | $6,117,382 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $2,377,977 | $5,222,934 | $3,516,628 | $2,782,730 | $1,514,526 | $4,195,062 | $3,815,897 |
| Mercury | $1,873,755 | $4,451,113 | $4,419,952 | $3,271,264 | $2,553,043 | $2,528,812 | $5,362,813 |
| Total | $6,111,886 | $11,706,053 | $10,671,027 | $8,001,909 | $7,295,694 | $13,857,947 | $15,494,357 |
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