|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical insulators, of glass | | | | $862 | $60,135 | | $1,593 |
| Electrical insulators, of ceramics | $1,422 | $299 | $524 | $774 | $855 | $2,875 | $10,446 |
| Electrical insulators of any mat. other than glass & ceramics | $52 | $1,268 | $14,343 | $37,434 | $520 | $6,957 | $26,565 |
| Total | $1,474 | $1,567 | $14,867 | $39,070 | $61,510 | $9,832 | $38,604 |
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