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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sodium metasilicates | $38,042 | $24,885 | $15,554 | $22,429 | $37,623 | $23,982 | $33,538 |
| Silicates of sodium other than sodiummetasilicates | $1,503 | $22,745 | $14,343 | $61,420 | $67,083 | $4,422 | $7,520 |
| Potsssium silicates | $13,802 | $15,673 | | | | | |
| Silicates other than of sodium/potassium; commercial alkali metal silicates ... | $4,600 | | $7,191 | $7,004 | $7,308 | $21,547 | $8,910 |
| Total | $57,947 | $63,303 | $37,088 | $90,853 | $112,014 | $49,951 | $49,968 |
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