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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Optical, photographic, cinematographic, measuring, checking, precision, med ... | $8,352,840,385 | $9,770,364,166 | $11,276,878,152 | $12,249,801,795 | $10,875,019,088 | $13,404,485,728 | $14,947,916,802 |
| Clocks and watches and parts thereof | $4,625,086,965 | $4,367,114,931 | $5,279,484,212 | $6,161,390,732 | $5,058,405,114 | $7,427,264,603 | $9,710,238,928 |
| Musical instruments; parts and accessories of such articles | $132,848,548 | $139,720,087 | $146,805,683 | $159,085,240 | $131,687,084 | $144,815,870 | $125,839,680 |
| Total | $13,110,775,898 | $14,277,199,184 | $16,703,168,047 | $18,570,277,767 | $16,065,111,286 | $20,976,566,201 | $24,783,995,410 |
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