|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Electrical insulators, of glass | $75 | $1,916 | $108 | $2 |
| Electrical insulators, of ceramics | | $339 | $5,597 | $679 |
| Electrical insulators of any mat. other than glass & ceramics | $14,520 | $34,050 | $25,834 | $28,492 |
| Total | $14,595 | $36,305 | $31,539 | $29,173 |
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