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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $448 | $2,798 | $1,166 | $4,850 | $85,896 | $3,683 | $7,228 |
| Silicates of sodium other than sodiummetasilicates | $530 | $2,591 | $4,602 | $4,312 | $2,993 | $40,468 | $31,996 |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $1,059 | $296 | $4,592 | $545 | | | $69 |
| Total | $2,037 | $5,685 | $10,360 | $9,707 | $88,889 | $44,151 | $39,293 |
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