| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Yes, present | 1887 |
46.3%
|
| 2 | 2. No, not present | 671 |
16.5%
|
| 97 | 97. Not Asked | 1387 |
34%
|
| 99 | 99. Observation not possible | 134 |
3.3%
|
| Sysmiss | 35 |