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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Instruments, app. & models designed for demonstrational purps. (e.g., in ed ... | $1,744,123 | $1,425,660 | $3,025,583 | $2,370,059 | $868,445 | $1,314,209 |
| Total | $1,744,123 | $1,425,660 | $3,025,583 | $2,370,059 | $868,445 | $1,314,209 |
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