| 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | Total | |
| Academia | 400 | 1,200 | 1,300 | 1,200 | 500 | 500 | - | 200 | 5,300 |
| Total | 400 | 1,200 | 1,300 | 1,400 | 500 | 500 | - | 200 | 5,300 |
Data is from the NSF National Survey of College Graduates, 1993
Data reflects status as of 15 April 1993
- = Insufficient data