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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $16,731 | $9,766 | $9,076 | $16,253 | $22,747 | $30,290 | $38,025 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $266,340 | $118,163 | $79,118 | $30,168 | $153,318 | $246,290 | $105,049 |
| Electro-magnetic couplings, clutches & brakes | $6,477,929 | $4,360,572 | $2,462,577 | $1,678,589 | $1,138,369 | $1,695,678 | $2,291,836 |
| Electro-magnetic lifting heads | $195 | $3,988 | | | | | |
| Electro-magnets n.e.s. in 85.05; electro-magnetic/permanent magnet chucks, ... | $259,655 | $239,187 | $112,768 | $22,061 | $135,802 | $263,925 | $103,070 |
| Total | $7,020,850 | $4,731,676 | $2,663,539 | $1,747,071 | $1,450,236 | $2,236,183 | $2,537,980 |
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