|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Electrical insulators, of glass | | $56,807 | | $402,313 | | $10,998 |
| Electrical insulators, of ceramics | $166 | | | $795 | | |
| Electrical insulators of any mat. other than glass & ceramics | $16,744 | $12,183 | $54,263 | $74,499 | $260,568 | $1,307,967 |
| Total | $16,910 | $68,990 | $54,263 | $477,607 | $260,568 | $1,318,965 |
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