| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | primary | 240 |
75.5%
|
| 2 | secondary i | 60 |
18.9%
|
| 3 | secondary ii | 10 |
3.1%
|
| 4 | higher | 4 |
1.3%
|
| 8 | dk | 4 |
1.3%
|
| Sysmiss | 4825 |