| Value | Category | Cases | |
|---|---|---|---|
| -9 | Refuse to answer | 0 |
0%
|
| -8 | I don't know | 16 |
10%
|
| 0 | No | 56 |
35%
|
| 1 | Yes | 88 |
55%
|
| Sysmiss | 311 |