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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Instruments, app. & models designed for demonstrational purps. (e.g., in ed ... | $3,235,875 | $4,992,509 | $6,965,209 | $5,218,038 | $7,560,260 | $8,773,482 | $8,732,846 |
| Total | $3,235,875 | $4,992,509 | $6,965,209 | $5,218,038 | $7,560,260 | $8,773,482 | $8,732,846 |
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