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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $326,691 | $371,007 | $37,950 | $500 | $975 | $1,110 | $2,996 |
| Alkali/alkaline-earth metals other than sodium & calcium | $3,814,645 | $7,007,877 | $8,341,374 | $8,744,537 | $5,897,931 | $10,512,630 | $10,927,783 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $270,698 | $129,765 | $110,455 | $245,434 | $289,999 | $388,291 | $527,481 |
| Mercury | $611,932 | $1,925,493 | $2,725,017 | $169,050 | | | $1,260 |
| Total | $5,023,966 | $9,434,142 | $11,214,796 | $9,159,521 | $6,188,905 | $10,902,031 | $11,459,520 |
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