| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 4 |
1.4%
|
| 1 | Yes | 182 |
64.1%
|
| 2 | No | 98 |
34.5%
|
| Sysmiss | 76 |