| Value | Category | Cases | |
|---|---|---|---|
| 0 | pre-primary | 2 |
0.5%
|
| 1 | primary | 310 |
83.3%
|
| 2 | secondary lower | 35 |
9.4%
|
| 3 | secondary upper | 21 |
5.6%
|
| 4 | higher | 4 |
1.1%
|
| 8 | dk | 0 |
0%
|
| Sysmiss | 11864 |