| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2160 |
43.7%
|
| 2 | Primary | 1142 |
23.1%
|
| 3 | Secondary | 968 |
19.6%
|
| 4 | Higher | 561 |
11.3%
|
| 9 | Missing/DK | 117 |
2.4%
|
| Sysmiss | 492 |