| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | 87 |
68%
|
|
| 2 | No | 41 |
32%
|
| 3 | Yes | 0 |
0%
|
| Sysmiss | 91 |