The Alfred P. Sloan Foundation
Age Range
%
N
Under 28
3%
219
28–29
13%
978
30–31
21%
1,562
32–33
1,550
34–35
16%
1,142
36–37
10%
717
38–39
7%
480
40–41
4%
326
42 and over
5%
377
