| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 187 |
3%
|
| 2 | Certificate | 1044 |
16.9%
|
| 3 | Diploma | 4512 |
73.1%
|
| 4 | Advanced | 430 |
7%
|
| Sysmiss | 18828 |