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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $4,928 | $13,434 | $39,039 | $59,095 | $13,449 | $17,780 | $11,209 |
| Silicates of sodium other than sodiummetasilicates | | $5,563 | $16,862 | $39,031 | $7,445 | $12,495 | $14,795 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | | $1,767 | $11,162 | $18,726 | $15,129 | $10,412 | $19,968 |
| Total | $4,928 | $20,764 | $67,063 | $116,852 | $36,023 | $40,687 | $45,972 |
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