| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 3 |
4.5%
|
| 1 | Yes | 25 |
37.3%
|
| 2 | No | 39 |
58.2%
|
| Sysmiss | 84 |