只有16个美国大学学生人数达到两位数，七个藤 （除了大猫）都在其中。可能有个别不是本科生。数据应该95%+的准确。
--Massachusetts Institute of Technology: 70
--Harvard University: 43
--Princeton University: 41
--Carnegie Mellon University: 36
--Yale University: 30
--Stanford 25
--University of Pennsylvania: 24
--Columbia University: 21
--Brown University: 20
--University of Texas at Austin: 20
--Duke University: 19
--University of Michigan: 16
--University of California, Berkeley: 14
--Cornell University: 12
--University of Chicago: 11
--New York University: 11
其他学校都是个位数：
Georgia Institute of Technology: 9
Northwestern University: 7
California Institute of Technology: 7
University of Notre Dame:7
Washington University in St. Louis:7
University of Virginia: 6
Johns Hopkins University: 5
Georgetown University:5
University of Southern California: 5
University of Illinois Urbana-Champaign: 4
Rice University: 4
University of California, Los Angeles: 4
Vanderbilt University: 4
Dartmouth College: 3
University of North Carolina at Chapel Hill: 3
Emory University: 1
University of California San Diego: 1
