| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 4915 |
19.5%
|
| 2 | No | 20214 |
80.2%
|
| 8 | Dk | 47 |
0.2%
|
| 9 | Missing | 23 |
0.1%
|
| Sysmiss | 818 |