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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $48,245 | $6,244 | $12,591 | $6,231 | $20,323 | $12,543 | $13,584 |
| Silicates of sodium other than sodiummetasilicates | $77,815 | $171,068 | $214,213 | $149,018 | $57,177 | $31,963 | $35,125 |
| Potsssium silicates | $22,816 | $13,398 | $577 | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $15,598 | $7,071 | $38,630 | $35,181 | $55,129 | $16,508 | $14,728 |
| Total | $164,474 | $197,781 | $266,011 | $190,430 | $132,629 | $61,014 | $63,437 |
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