|
| Commodity | 2005 | 2006 | 2007 | 2009 |
| Sodium metasilicates | $376,770 | $410,482 | $395,732 | $453,238 |
| Silicates of sodium other than sodiummetasilicates | $103,884 | $223,523 | $213,187 | $94,011 |
| Potsssium silicates | $5,948 | $3,254 | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $155,996 | $1,098 | $17,489 | $51,060 |
| Total | $642,598 | $638,357 | $626,408 | $598,309 |
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