| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 2113 |
23.4%
|
| 2 | No | 6462 |
71.5%
|
| 8 | DK | 149 |
1.6%
|
| 9 | NS | 312 |
3.5%
|
| Sysmiss | 23563 |