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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $83,789 | $23,529 | $8,854 | $37,552 | $81,124 | $161,440 | $153,142 |
| Silicates of sodium other than sodiummetasilicates | $1,849,028 | $1,741,943 | $822,689 | $1,893,237 | $279,979 | $202,251 | $98,613 |
| Potsssium silicates | | $20,610 | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $134,916 | $11,136 | $44,347 | $410,546 | $225,010 | $396,505 | $594,530 |
| Total | $2,067,733 | $1,797,218 | $875,890 | $2,341,335 | $586,113 | $760,196 | $846,285 |
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