| Value | Category | Cases | |
|---|---|---|---|
| 1 | Primary | 176 |
4.2%
|
| 2 | Secondary | 1003 |
24.1%
|
| 3 | University | 2002 |
48%
|
| 4 | I do not know. | 986 |
23.7%
|
| Sysmiss | 59 |