Universität	2010/11	2011/12	2012/13	2013/14
California Institute of Technology 	2	1	1	1
University of Oxford 	6	4	2	2
Harvard University 	1	2	4	2
Stanford University 	4	2	2	4
Massachusetts Institute of Technology 	3	7	5	5
Princeton University 	5	5	6	6
University of Cambridge 	6	11	7	7
University of California, Berkeley 	8	10	9	8
University of Chicago 	12	9	10	9
Imperial College London 	9	8	8	10
Yale University 	10	11	11	11
University of California, Los Angeles 	11	13	13	12
Columbia University 	18	18	14	13
ETH Zürich	15	15	12	14
Johns Hopkins University 	13	14	16	15
University of Pennsylvania 	19	16	15	16
Duke University	24	22	23	17
University of Michigan 	15	18	20	18
Cornell University 	14	20	18	19
University of Toronto 	17	19	21	20