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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium metasilicates | $33,702 | $32,383 | $79,902 | $37,206 | $4,067 | $391 |
| Silicates of sodium other than sodiummetasilicates | $13,825 | $2,912 | $8,413 | $10,673 | $10,823 | $11,453 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $1,419 | $2,290 | $984 | $337 | $2,937 | $24,268 |
| Total | $48,946 | $37,585 | $89,299 | $48,216 | $17,827 | $36,112 |
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