University
|
Country
|
2004
|
2005
|
2006
|
2010
|
| |
|
|
|
|
|
| Harvard University |
US |
1 |
1 |
1 |
1 |
| Yale University |
US |
6 |
3 |
2 |
3 |
| University of Oxford |
UK |
5 |
4 |
3 |
5 |
| University of Cambridge |
UK |
8 |
7 |
4 |
2 |
| Imperial College London |
UK |
14 |
13 |
9 |
5 |
| Princeton University |
US |
9 |
9 |
10 |
8 |
| University of Chicago |
US |
4 |
8 |
7 |
7 |
| California Institute of Technology |
US |
13 |
17 |
11 |
10 |
| University College London |
UK |
34 |
28 |
25 |
4 |
| Massachusetts Institute of Technology |
US |
3 |
2 |
4 |
9 |
| Columbia University |
US |
19 |
20 |
12 |
11 |
| McGill University |
CA |
21 |
24 |
21 |
18 |
| Duke University |
US |
52 |
11 |
13 |
14 |
| University of Pennsylvania |
US |
28 |
32 |
26 |
12 |
| Johns Hopkins University |
US |
25 |
27 |
23 |
13 |
Australian National University
|
AU |
12 |
16 |
19 |
17 |
| University of Michigan |
US |
22 |
25 |
18 |
19 |
| Stanford University |
US |
7 |
5 |
6 |
16 |
| Cornell University |
US |
38 |
44 |
45 |
15 |
University of Edinburgh
|
US |
23 |
14 |
15 |
20 |
