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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical, photographic, cinematographic, measuring, checking, precision, med ... | $2,344,810,936 | $2,332,004,239 | $2,430,880,007 | $2,293,888,223 | $2,057,660,065 | $1,822,903,307 | $1,910,373,291 |
| Clocks and watches and parts thereof | $51,902,116 | $56,668,145 | $70,357,701 | $61,412,891 | $40,897,721 | $39,827,150 | $45,610,337 |
| Musical instruments; parts and accessories of such articles | $20,667,396 | $24,862,630 | $25,696,258 | $23,278,389 | $16,337,071 | $15,042,531 | $13,978,275 |
| Total | $2,417,380,448 | $2,413,535,014 | $2,526,933,966 | $2,378,579,503 | $2,114,894,857 | $1,877,772,988 | $1,969,961,903 |
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