| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 3015 |
33.4%
|
| 2 | No | 5592 |
61.9%
|
| 8 | DK | 127 |
1.4%
|
| 9 | NS | 302 |
3.3%
|
| Sysmiss | 23563 |