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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Binoculars | $111,847,563 | $110,584,996 | $126,737,790 | $136,058,139 | $115,307,742 | $143,209,248 | $153,851,139 |
| Monoculars & oth. optical telescopes; oth. astronomical instr. (excl. instr ... | $69,717,507 | $87,266,875 | $97,036,505 | $95,830,911 | $77,290,744 | $92,894,188 | $103,152,983 |
| Parts & accessories, incl. mountings, of the instr. of 90.05 | $15,049,512 | $14,269,377 | $13,522,759 | $15,684,551 | $10,720,911 | $13,202,115 | $15,972,613 |
| Total | $196,614,582 | $212,121,248 | $237,297,054 | $247,573,601 | $203,319,397 | $249,305,551 | $272,976,735 |
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