| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | primary | 128 |
74.4%
|
| 2 | secondary i | 31 |
18%
|
| 3 | secondary ii | 10 |
5.8%
|
| 4 | higher | 3 |
1.7%
|
| 8 | dk | 0 |
0%
|
| Sysmiss | 4971 |