| Value | Category | Cases | |
|---|---|---|---|
| -9 | Refuse to answer | 0 |
0%
|
| -8 | I don't know | 7 |
4.4%
|
| 0 | No | 129 |
80.6%
|
| 1 | Yes | 24 |
15%
|
| Sysmiss | 311 |