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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $1,058 | $1,548 | $5,374 | $4,582 | $8,912 | $2,039 | $4,078 |
| Silicates of sodium other than sodiummetasilicates | $2,840 | $265 | $38,187 | $29,524 | $7,571 | $38,022 | $49,679 |
| Potsssium silicates | $1,853 | | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | | | $7,201 | $17,738 | $8,067 | $4,769 | $3,619 |
| Total | $5,751 | $1,813 | $50,762 | $51,844 | $24,550 | $44,830 | $57,376 |
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