|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical insulators, of glass | $2,628 | $135,063 | $235,419 | $341,984 | $259,010 | $142,560 | $675,791 |
| Electrical insulators, of ceramics | $6,790,226 | $9,159,629 | $13,163,099 | $11,185,717 | $11,539,807 | $9,417,011 | $8,902,848 |
| Electrical insulators of any mat. other than glass & ceramics | $1,673,379 | $2,688,727 | $3,762,314 | $6,965,384 | $6,020,083 | $37,303,188 | $34,726,057 |
| Total | $8,466,233 | $11,983,419 | $17,160,832 | $18,493,085 | $17,818,900 | $46,862,759 | $44,304,696 |
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