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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | | | $17,571 | $14,474 | $1,765 | $2,850 | $92,339 |
| Silicates of sodium other than sodiummetasilicates | $176 | $10,640 | $3,484 | $13,642 | $12,275 | $919 | $14,385 |
| Potsssium silicates | | $666 | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $47,217 | $27,708 | $2,355 | $2,098 | $1,289 | $2,261 | $3,200 |
| Total | $47,393 | $39,014 | $23,410 | $30,214 | $15,329 | $6,030 | $109,924 |
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