| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1458 |
2.2%
|
| 2 | Primary | 8407 |
12.8%
|
| 3 | Secondary | 7122 |
10.9%
|
| 4 | Higher | 3609 |
5.5%
|
| 5 | Cannot be determined | 569 |
0.9%
|
| 9 | Missing/DK | 109 |
0.2%
|
| Sysmiss | 44223 |
67.5%
|