| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 15 |
40.5%
|
| 1 | Yes | 6 |
16.2%
|
| 98 | DK | 3 |
8.1%
|
| 99 | RA | 13 |
35.1%
|
| Sysmiss | 3022 |