|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical insulators, of glass | | $913 | $5,870 | $93 | | | $5,000 |
| Electrical insulators, of ceramics | $80,773 | $76,227 | $87,967 | $471,223 | $94,235 | $741,030 | $117,000 |
| Electrical insulators of any mat. other than glass & ceramics | $268,308 | $963,537 | $1,160,436 | $968,050 | $947,733 | $825,412 | $2,283,000 |
| Total | $349,081 | $1,040,677 | $1,254,273 | $1,439,366 | $1,041,968 | $1,566,442 | $2,405,000 |
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