|
| Commodity | 2005 | 2006 | 2007 |
| Electrical insulators, of glass | $108,424 | $21,264 | $272,073 |
| Electrical insulators, of ceramics | $81,039 | $20,935 | $390,689 |
| Electrical insulators of any mat. other than glass & ceramics | $169,801 | $15,007 | $105,991 |
| Total | $359,264 | $57,206 | $768,753 |
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