| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 = Primary | 403 |
18.8%
|
| 2 | 2 = Secondary | 84 |
3.9%
|
| 3 | 3 = Higher | 10 |
0.5%
|
| 7 | 7 = Refusal | 147 |
6.9%
|
| 9 | 9 = Not applicable | 1477 |
68.9%
|
| 5 | 5 = Missing | 24 |
1.1%
|