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| Commodity | 2005 | 2006 | 2007 | 2009 | 2010 | 2011 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $1,367 | $2,037 | $14,467 | $14,414 | $17,758 | $19,280 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $1,213 | $4,220 | $7,378 | $7,509 | $11,194 | $20,069 |
| Electro-magnetic couplings, clutches & brakes | $2,532 | $7,930 | $3,936 | $2,242 | $5,630 | $732 |
| Electro-magnetic lifting heads | | | $73 | | | |
| Electro-magnets n.e.s. in 85.05; electro-magnetic/permanent magnet chucks, ... | $264 | $3,296 | $5,201 | $3,482 | $1,451 | $2,110 |
| Total | $5,376 | $17,483 | $31,055 | $27,647 | $36,033 | $42,191 |
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