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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical, photographic, cinematographic, measuring, checking, precision, med ... | $30,230,736,581 | $30,221,556,814 | $30,813,536,900 | $32,529,501,360 | $27,246,125,553 | $37,695,131,158 | $43,539,428,610 |
| Clocks and watches and parts thereof | $948,884,171 | $946,425,764 | $906,571,409 | $967,884,723 | $745,918,070 | $1,074,410,306 | $1,256,498,529 |
| Musical instruments; parts and accessories of such articles | $657,446,750 | $637,281,824 | $665,107,004 | $807,097,006 | $613,862,775 | $714,989,185 | $779,527,743 |
| Total | $31,837,067,502 | $31,805,264,402 | $32,385,215,313 | $34,304,483,089 | $28,605,906,398 | $39,484,530,649 | $45,575,454,882 |
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