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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $10,062 | $5,669 | $950 | $4,305 | $3,258 | $3,514 | $18,000 |
| Silicates of sodium other than sodiummetasilicates | $56,006 | $173,210 | $158,970 | $474,245 | $297,930 | $435,632 | $247,000 |
| Potsssium silicates | $1,576 | | | $5,770 | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $45,867 | $4,003 | $6,625 | $76,721 | $119,295 | $118,314 | $180,000 |
| Total | $113,511 | $182,882 | $166,545 | $561,041 | $420,483 | $557,460 | $445,000 |
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