| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | primary | 13 |
86.7%
|
| 2 | secondary i | 2 |
13.3%
|
| 3 | secondary ii | 0 |
0%
|
| 4 | higher | 0 |
0%
|
| 8 | dk | 0 |
0%
|
| Sysmiss | 5128 |