| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 27 |
1.5%
|
| 1 | Primary | 737 |
40.9%
|
| 2 | Secondary | 999 |
55.5%
|
| 3 | University or higher | 38 |
2.1%
|
| Sysmiss | 74 |