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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Instruments, app. & models designed for demonstrational purps. (e.g., in ed ... | $394,909 | $1,115,581 | $1,110,577 | $1,614,943 | $399,658 | $4,714,725 | $4,244,827 |
| Total | $394,909 | $1,115,581 | $1,110,577 | $1,614,943 | $399,658 | $4,714,725 | $4,244,827 |
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