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| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 | 2011 |
| Sodium metasilicates | | | $53,964 | $50,773 | | $6,934 |
| Silicates of sodium other than sodiummetasilicates | $2,118 | | $98,411 | $26,004 | $17,972 | $8,586 |
| Potsssium silicates | $10,831 | $10,249 | $151,359 | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | | $19,372 | | $149,389 | | |
| Total | $12,949 | $29,621 | $303,734 | $226,166 | $17,972 | $15,520 |
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