| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1077 |
11.9%
|
| 2 | No | 7452 |
82.5%
|
| 8 | DK | 191 |
2.1%
|
| 9 | NS | 316 |
3.5%
|
| Sysmiss | 23563 |