| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 1608 |
17.8%
|
| 2 | No | 6902 |
76.4%
|
| 8 | DK | 208 |
2.3%
|
| 9 | NS | 318 |
3.5%
|
| Sysmiss | 23563 |