|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Electrical insulators, of ceramics | | | $440 | $14,917 | $44,609 | $10,884 |
| Electrical insulators of any mat. other than glass & ceramics | $1,067 | $11,343 | $9,424 | $6,500 | $20,771 | $18,927 |
| Total | $1,067 | $11,343 | $9,864 | $21,417 | $65,380 | $29,811 |
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