| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes (spontaneous) | 21 |
10.3%
|
| 2 | Yes (on recognition) | 137 |
67.5%
|
| 3 | No | 45 |
22.2%
|
| 9 | Refused | 0 |
0%
|
| Sysmiss | 3 |