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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical, photographic, cinematographic, measuring, checking, precision, med ... | $9,925,585,348 | $10,871,212,775 | $10,914,607,866 | $11,328,602,707 | $9,791,568,134 | $13,738,348,285 | $15,648,441,686 |
| Clocks and watches and parts thereof | $208,642,825 | $224,928,157 | $260,761,759 | $294,615,216 | $289,912,896 | $401,908,300 | $524,353,741 |
| Musical instruments; parts and accessories of such articles | $137,193,882 | $161,554,515 | $188,924,833 | $188,301,928 | $146,166,968 | $171,460,479 | $208,910,385 |
| Total | $10,271,422,055 | $11,257,695,447 | $11,364,294,458 | $11,811,519,851 | $10,227,647,998 | $14,311,717,064 | $16,381,705,812 |
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