| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1%
|
| 1 | Yes, fully | 151 |
25%
|
| 2 | Yes, partially | 189 |
31.3%
|
| 3 | No | 257 |
42.6%
|
| Sysmiss | 416 |