The response rate to this survey is veyr low–12% this year.  Because the rates are so low, they average two years' worth of results, which helps avoid arbitrary fluctuations.  They still on disclose the geographic breakdown of respondents, a serious lacuna.  All the evidence suggests that firms in the Northeast corridor are overrepresented in the response pool, but we can't know for sure.

1.  Harvard University

2.  Stanford University

2.  Yale University

4.  Columbia University

4.  University of Chicago

4.  University of Michigan, Ann Arbor

4.  University of Virginia

8.  Georgetown University

8.  New York University

8.  University of Pennsylvania

11. Cornell University

11. Duke University

11. Northwestern University

11. University of California, Berkeley

15. University of Texas, Austin

16. Vanderbilt University

17. University of California, Los Angeles

17. Washington University, St. Louis

19. University of Minnesota, Twin Cities

19. University of North Carolina, Chapel Hill

19. University of Notre Dame

22. College of William & Mary

22. Emory University

22. George Washington University

22. Indiana University, Bloomington

22. University of California, Hastings

22. University of Southern California

22. University of Washington, Seattle

22. Washington & Lee University