1California Institute of Technology

　　1Harvard University

　　1Massachusetts Institute of Technology

　　1Stanford University

　　5Princeton University

　　5University of California--Berkeley

　　7Cornell University

　　7University of Chicago

　　9University of Illinois--Urbana-Champaign

　　10University of California--Santa Barbara

　　11Columbia University

　　11University of Michigan--Ann Arbor

　　11Yale University

　　14University of California--San Diego

　　14University of Maryland--College Park

　　14University of Texas--Austin

　　17University of Pennsylvania

　　17University of Wisconsin--Madison

　　19Johns Hopkins University (Rowland)

　　19University of California--Los Angeles

　　19University of Washington

　　23Ohio State University

　　23Pennsylvania State University--University Park

　　23SUNY--Stony Brook

　　26Rice University

　　26Rutgers, the State University of New Jersey--New Brunswick

　　26University of California--Davis

　　26University of Minnesota--Twin Cities

　　30Brown University

　　30Carnegie Mellon University

　　30Duke University

　　30Georgia Institute of Technology

　　30Northwestern University

　　30University of California--Irvine

　　36Michigan State University

　　36University of Arizona

　　36University of Florida

　　36University of North Carolina--Chapel Hill

　　40Boston University

　　40Indiana University--Bloomington

　　40New York University

　　40Purdue University--West Lafayette

　　40Texas A&M University--College Station

　　40University of California--Santa Cruz

　　40University of Virginia

　　40Washington University in St. Louis

　　48Arizona State University

　　48Florida State University

　　48Iowa State University