| Rank | School | % of class size |
|---|---|---|
| #1 | University of Michigan | 7.2% |
| #2 | Northwestern University | 1.6% |
| #3 | Michigan State University | 1.5% |
| #4 | Washington University in St. Louis | 1.4% |
| #4 | University of California, Los Angeles | 1.4% |
| #4 | University of Illinois at Urbana-Champaign | 1.4% |
