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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Sodium metasilicates | $8,291 | $9,725 | $19,282 | $12,447 | $35,789 |
| Silicates of sodium other than sodiummetasilicates | $33,369 | $42,857 | $33,074 | $46,492 | $69,470 |
| Potsssium silicates | $23,770 | $12,630 | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $62,106 | $115,545 | $168,707 | $223,863 | $127,879 |
| Total | $127,536 | $180,757 | $221,063 | $282,802 | $233,138 |
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