|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Electrical insulators, of glass | $2,972 | | | | |
| Electrical insulators, of ceramics | | | | $217 | $3,135 |
| Electrical insulators of any mat. other than glass & ceramics | $6,443 | $10,753 | $2,274 | $22,179 | $3,851 |
| Total | $9,415 | $10,753 | $2,274 | $22,396 | $6,986 |
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