| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.2%
|
| 1 | Yes, fully | 228 |
39.2%
|
| 2 | Yes, partially | 192 |
33%
|
| 3 | No | 161 |
27.7%
|
| Sysmiss | 850 |