| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1115 |
20.9%
|
| 1 | Yes | 40 |
0.7%
|
| 8 | Don't know | 41 |
0.8%
|
| 9 | No answer | 9 |
0.2%
|
| Sysmiss | 4132 |
77.4%
|