| Value | Category | Cases | |
|---|---|---|---|
| 1 | Primary | 11 |
0.4%
|
| 2 | Preparatory | 121 |
4.2%
|
| 3 | Secondary | 642 |
22.4%
|
| 4 | Above intermediate | 235 |
8.2%
|
| 5 | University | 1581 |
55.1%
|
| 6 | Above university | 279 |
9.7%
|
| Sysmiss | 8047 |