| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| 1 | 110 |
85.9%
|
|
| 2 | No | 17 |
13.3%
|
| 6 | Yes | 0 |
0%
|
| Sysmiss | 91 |