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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium metasilicates | $39,878 | $37,588 | $43,467 | $45,598 | $33,467 | $20,958 |
| Silicates of sodium other than sodiummetasilicates | $84,901 | $93,130 | $125,457 | $125,119 | $59,183 | $84,328 |
| Potsssium silicates | $45,116 | $40,412 | $13,241 | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $154,183 | $131,892 | $156,824 | $150,948 | $116,722 | $134,442 |
| Total | $324,078 | $303,022 | $338,989 | $321,665 | $209,372 | $239,728 |
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