| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes,with certificate | 2618 |
35.1%
|
| 2 | Yes without certificate | 1427 |
19.1%
|
| 3 | No | 337 |
4.5%
|
| 4 | 3074 |
41.2%
|
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 64393 |