1 Harvard University Cambridge, MA
1 Princeton University Princeton, NJ
3 Yale University New Haven, CT
4 California Institute of Technology Pasadena, CA
4 Massachusetts Institute of Technology Cambridge, MA
4 Stanford University Stanford, CA
4 University of Pennsylvania Philadelphia, PA
8 Columbia University New York, NY
8 University of Chicago Chicago, IL
10 Duke University Durham, NC
11 Dartmouth College Hanover, NH
12 Northwestern University Evanston, IL
12 Washington University in St. Louis St. Louis, MO
14 Johns Hopkins University Baltimore, MD
15 Cornell University Ithaca, NY
16 Brown University Providence, RI
+
1 Williams College Williamstown, MA
2 Amherst College Amherst, MA
3 Swarthmore College Swarthmore, PA