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| Chapter | 2005 | 2006 | 2007 |
| Optical, photographic, cinematographic, measuring, checking, precision, med ... | $13,866,592 | $18,736,910 | $28,333,049 |
| Clocks and watches and parts thereof | $171,798 | $117,814 | $250,318 |
| Musical instruments; parts and accessories of such articles | $75,738 | $661,523 | $194,613 |
| Total | $14,114,128 | $19,516,247 | $28,777,980 |
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