| Value | Category | Cases | |
|---|---|---|---|
| 0 | 529 |
15%
|
|
| 1 | 1. Yes, present | 2995 |
85%
|
| 2 | 2. No, not present | 0 |
0%
|
| 97 | 97. Not Asked | 0 |
0%
|
| 99 | 99. Observation not possible | 0 |
0%
|
| Sysmiss | 1866 |