| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 12 |
2.5%
|
| 2 | No | 468 |
97.1%
|
| 8 | DK | 0 |
0%
|
| 9 | missing | 2 |
0.4%
|
| Sysmiss | 335 |