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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $17,200 | | $1,100 | $1,293 | $49,950 | | $20 |
| Silicates of sodium other than sodiummetasilicates | $145,977 | $78,142 | $114,991 | $198,218 | $128,769 | $158,258 | $93,698 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $1,000 | $3,592 | $1,393 | $6,074 | $2,987 | $2,250 | $564 |
| Total | $164,177 | $81,734 | $117,484 | $205,585 | $181,706 | $160,508 | $94,282 |
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