| Value | Category | Cases | |
|---|---|---|---|
| 0 | pre-primary | 1 |
0%
|
| 1 | primary | 8208 |
73.4%
|
| 2 | secondary lower | 2176 |
19.4%
|
| 3 | secondary upper | 697 |
6.2%
|
| 4 | higher | 105 |
0.9%
|
| 8 | dk | 3 |
0%
|
| Sysmiss | 4161 |