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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Binoculars | $171,564,435 | $172,701,833 | $181,906,684 | $186,100,905 | $132,037,868 | $157,045,344 | $169,558,268 |
| Monoculars & oth. optical telescopes; oth. astronomical instr. (excl. instr ... | $96,169,288 | $95,579,776 | $95,172,604 | $87,357,563 | $75,573,918 | $97,291,085 | $91,080,342 |
| Parts & accessories, incl. mountings, of the instr. of 90.05 | $2,079,404 | $52,744 | $397,248 | $169,430 | $264,450 | $194,433 | $549,732 |
| Total | $269,813,127 | $268,334,353 | $277,476,536 | $273,627,898 | $207,876,236 | $254,530,862 | $261,188,342 |
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