|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Electrical insulators, of glass | $2,505,758 | $1,574,730 | $1,068,167 | $366,484 | $304,644 | $87,404 |
| Electrical insulators, of ceramics | $1,619,056 | $2,474,377 | $2,845,347 | $2,720,123 | $860,332 | $1,338,972 |
| Electrical insulators of any mat. other than glass & ceramics | $8,740,778 | $8,337,857 | $6,446,026 | $7,263,791 | $6,204,958 | $3,621,309 |
| Total | $12,865,592 | $12,386,964 | $10,359,540 | $10,350,398 | $7,369,934 | $5,047,685 |
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