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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Instruments, app. & models designed for demonstrational purps. (e.g., in ed ... | $13,115,424 | $18,936,954 | $17,445,109 | $22,222,137 | $20,348,727 | $28,655,911 | $37,224,316 |
| Total | $13,115,424 | $18,936,954 | $17,445,109 | $22,222,137 | $20,348,727 | $28,655,911 | $37,224,316 |
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