| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 3 |
0.9%
|
| 1 | Yes | 156 |
46.2%
|
| 2 | No | 179 |
53%
|
| Sysmiss | 262 |