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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $1,302,621 | $2,030,436 | $3,455,838 | $2,772,178 | $2,577,490 | $2,215,083 | $2,326,285 |
| Silicates of sodium other than sodiummetasilicates | $42,921,571 | $25,876,657 | $23,290,461 | $21,074,030 | $16,384,133 | $15,675,240 | $17,556,994 |
| Potsssium silicates | $764,119 | $645,779 | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $4,403,736 | $4,724,910 | $7,441,908 | $8,294,275 | $6,166,171 | $5,451,794 | $7,180,336 |
| Total | $49,392,047 | $33,277,782 | $34,188,207 | $32,140,483 | $25,127,794 | $23,342,117 | $27,063,615 |
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