1.

University of California–Berkeley (CA)

2.

Princeton University (NJ)

3.

Massachusetts Institute of Technology (MA)

4.

Harvard University (MA)

5.

Stanford University (CA)

5.

University of Chicago (IL)

7.

Columbia University (NY)

8.

University of Texas–Austin (TX)

9.

University of Michigan–Ann Arbor (MI)

10.

Cornell University (NY)

11.

   Yale University (CT)

12.

   University of Illinois–Chicago (IL)

13.

   Northwestern University (IL)

14.

  SUNY–Stony Brook (NY)

15.

   University of Illinois–Urbana-Champaign (IL)

16.

  California Institute of Technology (CA)

16.

   Johns Hopkins University (MD)

16.

   University of Notre Dame (IN)