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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Binoculars | $3,461,100 | $4,830,800 | $4,716,000 | $5,285,300 | $3,812,000 | $4,659,600 | $6,245,200 |
| Monoculars & oth. optical telescopes; oth. astronomical instr. (excl. instr ... | $7,773,300 | $11,790,900 | $13,196,600 | $11,777,100 | $17,899,400 | $25,763,000 | $12,970,500 |
| Parts & accessories, incl. mountings, of the instr. of 90.05 | $414,600 | $1,111,800 | $1,919,700 | $2,118,200 | $1,902,900 | $2,521,600 | $1,962,300 |
| Total | $11,649,000 | $17,733,500 | $19,832,300 | $19,180,600 | $23,614,300 | $32,944,200 | $21,178,000 |
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