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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical, photographic, cinematographic, measuring, checking, precision, med ... | $2,171,267,493 | $2,350,622,738 | $2,621,435,381 | $2,954,939,000 | $2,429,293,982 | $2,995,196,670 | $3,619,375,344 |
| Clocks and watches and parts thereof | $145,828,372 | $157,898,642 | $198,451,437 | $238,254,664 | $179,741,337 | $253,005,989 | $314,852,124 |
| Musical instruments; parts and accessories of such articles | $20,323,474 | $21,387,260 | $26,798,847 | $31,229,970 | $27,940,772 | $36,771,932 | $41,120,440 |
| Total | $2,337,419,339 | $2,529,908,640 | $2,846,685,665 | $3,224,423,634 | $2,636,976,091 | $3,284,974,591 | $3,975,347,908 |
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