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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Sodium metasilicates | | | $1,539,053 | $1,318,844 | $349,025 | $42,390 |
| Silicates of sodium other than sodiummetasilicates | | | $128,692 | $20,619 | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $2,234,091 | $1,062,127 | $285,763 | $68,315 | $37,641 | $2,528 |
| Total | $2,234,091 | $1,062,127 | $1,953,508 | $1,407,778 | $386,666 | $44,918 |
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