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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Sodium metasilicates | $9,797 | $662 | $1,434 | $3,364 | | $6,396 |
| Silicates of sodium other than sodiummetasilicates | $291,015 | $218,851 | $76,036 | $261,985 | $136,495 | $153,170 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $10,658 | $39,087 | $108,647 | $20,391 | $15,689 | $2,760 |
| Total | $311,470 | $258,600 | $186,117 | $285,740 | $152,184 | $162,326 |
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