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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium metasilicates | $9,927 | $22,652 | $29,216 | $41,524 | $56,333 | $48,797 |
| Silicates of sodium other than sodiummetasilicates | $6,761 | $2,088 | $1,764 | $7,407 | $15,086 | $1,722 |
| Potsssium silicates | $756 | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $2,929 | $17,064 | $559 | $6,781 | $9,838 | $3,064 |
| Total | $20,373 | $41,804 | $31,539 | $55,712 | $81,257 | $53,583 |
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