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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $21,875 | $77,110 | $52,094 | $32,144 | $16,140 | $17,761 | $25,636 |
| Silicates of sodium other than sodiummetasilicates | $124,952 | $185,019 | $254,975 | $58,958 | $98,684 | $94,501 | $134,976 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $2,282 | $955 | $5,846 | $11,056 | $24,590 | $35,233 | $55,057 |
| Total | $149,109 | $263,084 | $312,915 | $102,158 | $139,414 | $147,495 | $215,669 |
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