| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 375 |
4.9%
|
| 2 | Primary | 2405 |
31.3%
|
| 3 | Secondary | 3029 |
39.5%
|
| 4 | Higher | 1806 |
23.5%
|
| 9 | Missing/DK | 34 |
0.4%
|
| Sysmiss | 25 |
0.3%
|