| Value | Category | Cases | |
|---|---|---|---|
| 1 | YES | 1965 |
49.5%
|
| 2 | NO | 1999 |
50.4%
|
| 8 | DK | 4 |
0.1%
|
| 9 | NO RESPONSE | 0 |
0%
|
| Sysmiss | 2018 |