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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $5,507 | $7,312 | $3,076 | $5,659 | $23,258 | $3,422 | $340,268 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $11,586 | $34,089 | $9,603 | $49,823 | $25,933 | $33,720 | $6,370 |
| Electro-magnetic couplings, clutches & brakes | $2,664 | $4,486 | $8,080 | $64,179 | $401,548 | $153,402 | $123,385 |
| Electro-magnetic lifting heads | $87,128 | $21,695 | | | | | |
| Electro-magnets n.e.s. in 85.05; electro-magnetic/permanent magnet chucks, ... | $52,284 | $68,478 | $122,566 | $162,210 | $42,907 | $581,480 | $110,916 |
| Total | $159,169 | $136,060 | $143,325 | $281,871 | $493,646 | $772,024 | $580,939 |
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