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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Silicates of sodium other than sodiummetasilicates | $7,870,259 | $12,475,510 | $6,490,541 | $6,929,457 | $3,031,029 | $132,193 | $71,860 |
| Potsssium silicates | | $1,247 | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $97,260 | $89,724 | $52,743 | $255,982 | $280,881 | $996,813 | $754,593 |
| Total | $7,967,519 | $12,566,481 | $6,543,284 | $7,185,439 | $3,311,910 | $1,129,006 | $826,453 |
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