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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | | $2,416 | $679 | $1,502 | $1,697 | $2,787 | $3,832 |
| Silicates of sodium other than sodiummetasilicates | | $22,302 | $6,178 | $23,226 | $10,641 | $2,834 | $5,014 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $248 | | | $5,859 | $12,503 | $4,780 | $8,963 |
| Total | $248 | $24,718 | $6,857 | $30,587 | $24,841 | $10,401 | $17,809 |
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