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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Binoculars | $12,537,369 | $14,949,950 | $18,106,320 | $17,954,436 | $16,769,167 | $20,208,696 |
| Monoculars & oth. optical telescopes; oth. astronomical instr. (excl. instr ... | $8,728,296 | $5,647,061 | $4,289,134 | $4,640,010 | $7,841,978 | $3,172,565 |
| Parts & accessories, incl. mountings, of the instr. of 90.05 | $968,429 | $6,865,670 | $23,917,582 | $1,731,347 | $6,709,340 | $2,729,758 |
| Total | $22,234,094 | $27,462,681 | $46,313,036 | $24,325,793 | $31,320,485 | $26,111,019 |
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