| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 20069 |
4.4%
|
| 1 | Primary | 320713 |
69.8%
|
| 2 | Secondary | 113116 |
24.6%
|
| 3 | Tertiary | 5515 |
1.2%
|
| 4 | Higher | 0 |
0%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 0 | |
| Sysmiss | 46631 |