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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $12,683,920 | $4,176,289 | $6,403,540 | $5,656,346 | $3,952,982 | $4,880,363 | $7,289,077 |
| Alkali/alkaline-earth metals other than sodium & calcium | $4,144,912 | $2,924,058 | $2,342,943 | $4,713,125 | $2,812,317 | $8,247,825 | $10,326,891 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $1,192,672 | $878,170 | $1,732,528 | $2,393,853 | $1,414,961 | $3,397,021 | $3,686,830 |
| Mercury | $571,355 | $200,236 | $183,022 | $105,773 | $44,491 | $111,158 | $22,003 |
| Total | $18,592,859 | $8,178,753 | $10,662,033 | $12,869,097 | $8,224,751 | $16,636,367 | $21,324,801 |
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