| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1816 |
9.9%
|
| 2 | Primary | 9798 |
53.4%
|
| 3 | Secondary | 3446 |
18.8%
|
| 4 | Higher | 2085 |
11.4%
|
| 9 | Missing/DK | 65 |
0.4%
|
| Sysmiss | 1148 |
6.3%
|