| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | primary | 113 |
50.4%
|
| 2 | secondary i | 39 |
17.4%
|
| 3 | secondary ii | 21 |
9.4%
|
| 4 | higher | 20 |
8.9%
|
| 8 | dk | 31 |
13.8%
|
| Sysmiss | 922 |