| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know (spontaneous) | 5 |
3.7%
|
| -8 | Refusal (spontaneous) | 1 |
0.7%
|
| -7 | Does Not Apply (spontaneous) | 0 |
0%
|
| 1 | Yes | 31 |
23.1%
|
| 2 | No | 97 |
72.4%
|
| Sysmiss | 223 |