| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | primary | 3 |
60%
|
| 2 | secondary cycle 1 | 1 |
20%
|
| 3 | secondary cycle 1 | 0 |
0%
|
| 4 | higher | 1 |
20%
|
| 8 | don't know | 0 |
0%
|
| Sysmiss | 4807 |