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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $16,971 | $3,671 | $83,807 | | $272 | $10,158 | $13,580 |
| Alkali/alkaline-earth metals other than sodium & calcium | $1,171,610 | $1,332,241 | $197,839 | $14,971 | $37,889 | $31,359 | $142,548 |
| Mercury | | $179 | $6,385 | $10,766 | $5,028 | $42,687 | $9,610 |
| Total | $1,188,581 | $1,336,091 | $288,031 | $25,737 | $43,189 | $84,204 | $165,738 |
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