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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $9,930,210 | $11,644,358 | $14,513,914 | $18,689,665 | $8,379,635 | $13,159,367 | $6,990,033 |
| Alkali/alkaline-earth metals other than sodium & calcium | $22,902,649 | $25,622,277 | $29,715,686 | $27,927,357 | $26,535,609 | $41,699,123 | $60,859,834 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $5,259,230 | $7,265,717 | $20,934,400 | $19,522,886 | $16,544,781 | $31,405,991 | $109,027,784 |
| Mercury | $5,810,663 | $5,866,723 | $1,447,092 | $10,101,743 | $10,250,223 | $6,850,802 | $2,072,767 |
| Total | $43,902,752 | $50,399,075 | $66,611,092 | $76,241,651 | $61,710,248 | $93,115,283 | $178,950,418 |
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