1.3 percent:
1.8 percent:
2.7 percent:
2.9 percent:
3.1 percent:
3.8 percent:
Source: New England Journal of Higher Education, 2008
1.3 percent:
1.8 percent:
2.7 percent:
2.9 percent:
3.1 percent:
3.8 percent:
Source: New England Journal of Higher Education, 2008
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