|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Electrical insulators, of glass | $4,631 | $8,993 | $48,727 | $186,588 |
| Electrical insulators, of ceramics | | | $3,239 | $564 |
| Electrical insulators of any mat. other than glass & ceramics | $181,426 | $190,228 | $316,733 | $354,688 |
| Total | $186,057 | $199,221 | $368,699 | $541,840 |
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