| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes (spontaneous) | 18 |
8.9%
|
| 2 | Yes (on recognition) | 128 |
63.1%
|
| 3 | No | 56 |
27.6%
|
| 9 | Refused | 1 |
0.5%
|
| Sysmiss | 3 |