| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1006 |
19%
|
| -7 | Does not apply (spontaneous) | 371 |
7%
|
| 1 | Yes | 1168 |
22.1%
|
| 2 | No | 2739 |
51.8%
|
| Sysmiss | 5388 |