| Value | Category | Cases | |
|---|---|---|---|
| 1 | Secondary school grade 2 | 1700 |
26.5%
|
| 2 | Secondary school grade 3 | 1911 |
29.8%
|
| 3 | Secondary school grade 4 | 1584 |
24.7%
|
| 4 | Secondary school grade 5 | 1228 |
19.1%
|
| Sysmiss | 127 |