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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium | $5,049,756 | $6,243,803 | $8,151,413 | $20,583,136 | $14,354,641 | $13,107,877 |
| Alkali/alkaline-earth metals other than sodium & calcium | $2,532,337 | $2,062,842 | $1,839,181 | $2,370,840 | $910,852 | $2,691,311 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $91,995 | $388,196 | $704,104 | $800,103 | $670,934 | $1,056,638 |
| Mercury | $5,634,046 | $8,424,737 | $9,571,974 | $4,545,707 | $2,885,993 | $1,276,715 |
| Total | $13,308,134 | $17,119,578 | $20,266,672 | $28,299,786 | $18,822,420 | $18,132,541 |
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