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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | | $3,473 | $3,794 | $6,927 | $4,724 | $2,828 | $9,309 |
| Silicates of sodium other than sodiummetasilicates | $1,252 | $3,731 | $58,824 | $41,555 | $15,890 | $87,212 | $147,753 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $17,077 | $6,816 | $44,915 | $17,249 | $41,043 | $44,475 | $30,345 |
| Total | $18,329 | $14,020 | $107,533 | $65,731 | $61,657 | $134,515 | $187,407 |
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