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| Graduate/professional degree |  31% |
 26% |
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| Some postgraduate school | 9% |
| 5% |
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| College graduate | 25% |
| 24% |
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| Some college/vocational school | 22% |
| 33% |
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| High school graduate | 8% |
| 8% |
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| Did not complete high school | 2% |
| 1% |
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| Current middle or high school student | 3% |
| 3% |
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| Copyright | Privacy | Accessibility | Quality Guidelines U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 National Institutes of Health | Department of Health & Human Services |
Date last updated: 23 April 2007 |