<p>[Inside</a> the Ivory Tower - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Inside_the_Ivory_Tower]Inside”>Inside the Ivory Tower - Wikipedia)</p>
<p>Undergraduate programs</p>
<p>Rank School Percent </p>
<p>1 Harvard University 21
2 Princeton University 16
3 Yale University 12
4 Stanford University 12
5 Georgetown University 12
6 Columbia University 11
7 University of Chicago 7
8 Dartmouth College 5
9 University of California, Berkeley 4
10 Tufts University 3
10 University of Michigan 3
12 Duke University 3
13 Williams College 2
13 Cornell University 2
13 Massachusetts Institute of Technology 2
16 Swarthmore College 2
17 Johns Hopkins University 2
17 American University 2
19 University of California, San Diego 2
19 Brown University 2</p>