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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium metasilicates | $164,691 | $113,641 | $106,488 | $67,690 | $73,679 | $89,712 |
| Silicates of sodium other than sodiummetasilicates | $31,971 | $18,459 | $69,095 | $28,894 | $57,733 | $298,315 |
| Potsssium silicates | | $89,317 | $22,176 | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $91,480 | $65,583 | $57,389 | $41,964 | $85,677 | $72,816 |
| Total | $288,142 | $287,000 | $255,148 | $138,548 | $217,089 | $460,843 |
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