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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Industrial/laboratory elec. furnaces & ovens, resistance heated furnaces & ... | $338,783,365 | $450,912,637 | $458,195,435 | $792,013,170 | $520,063,048 | $1,072,861,630 | $950,207,671 |
| Industrial/laboratory elec. furnaces & ovens functioning by induction/diele ... | $43,797,419 | $85,088,902 | $68,099,513 | $130,504,090 | $88,552,156 | $118,272,090 | $121,585,328 |
| Industrial/laboratory elec. furnaces & ovens, n.e.s. in 85.14 | $284,288,212 | $285,466,551 | $181,031,898 | $248,822,787 | $270,541,526 | $222,087,570 | $257,841,144 |
| Equipment for the heat treatment of mats. by induction/dielectric loss, n.e ... | $84,121,509 | $117,388,126 | $96,375,016 | $103,669,559 | $92,271,285 | $75,885,434 | $132,625,808 |
| Parts of the equip. of 85.14 | $94,312,966 | $122,790,508 | $85,172,912 | $89,630,185 | $233,390,395 | $59,334,547 | $105,827,704 |
| Total | $845,303,471 | $1,061,646,724 | $888,874,774 | $1,364,639,791 | $1,204,818,410 | $1,548,441,271 | $1,568,087,655 |
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