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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Sodium metasilicates | $5,841 | $9,751 | $13,968 | $10,963 | $12,389 |
| Silicates of sodium other than sodiummetasilicates | $173 | $160 | $16,283 | $19,012 | $5,524 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $49,164 | $18,148 | $802 | $1,222 | $2,161 |
| Total | $55,178 | $28,059 | $31,053 | $31,197 | $20,074 |
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