MIT-Reported Class Size Distributions
Source: MIT Institutional Research
In reporting rankings, U.S. News bases its recommendations for the next year on the previous year’s data. The “America’s Best Colleges 2008” list is based on data from 2007. All dates in this tables refer to the data, not the date U.S. News uses in advertising its ranks.
| Year | Total # Classes | Percent < 20 students | Percent ≥ 50 students |
| 2004 | 738 | 63% | 15% |
| 2005 | 709 | 61% | 16% |
| 2006 | 1056 | 68% | 11% |
| 2007 | 897 | 61% | 14% |