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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Binoculars | $20,479 | $12,731 | $7,149 | $1,186 | $832 | | $1,654 |
| Monoculars & oth. optical telescopes; oth. astronomical instr. (excl. instr ... | $15,960 | | | | $8,037 | $7,596 | |
| Total | $36,439 | $12,731 | $7,149 | $1,186 | $8,869 | $7,596 | $1,654 |
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