| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 647 |
2.9%
|
| 2 | Primary | 7044 |
31.6%
|
| 3 | Secondary | 8993 |
40.4%
|
| 4 | Higher | 5297 |
23.8%
|
| Sysmiss | 275 |
1.2%
|