|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $8,000 | $9,000 | $72,000 | | $47,000 | $83,000 | $75,000 |
| Silicates of sodium other than sodiummetasilicates | $41,000 | $32,000 | $13,000 | $21,000 | $10,000 | $6,000 | $37,000 |
| Potsssium silicates | $1,000 | | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $16,000 | | $3,000 | | $6,000 | $11,000 | $15,000 |
| Total | $66,000 | $41,000 | $88,000 | $21,000 | $63,000 | $100,000 | $127,000 |
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