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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium | $503 | $6,890 | $12,110 | $21,829 | $23,923 | $841 | $3,392 |
| Alkali/alkaline-earth metals other than sodium & calcium | $35,195 | $42,706 | $83,953 | $117,512 | $37,850 | $54,095 | $43,974 |
| Rare-earth metals, scandium & yttrium, whether or not intermixed/interalloy ... | $190,581 | $132,647 | $23,308 | $22,318 | $1,630 | $5,143 | $147 |
| Mercury | $494,876 | $980,705 | $1,347,497 | $107,100 | $17,614 | $823,957 | $875,665 |
| Total | $721,155 | $1,162,948 | $1,466,868 | $268,759 | $81,017 | $884,036 | $923,178 |
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