| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 3569 |
4.2%
|
| 2 | no | 81549 |
95.3%
|
| 3 | (dk) | 310 |
0.4%
|
| 4 | (ref) | 183 |
0.2%
|
| Sysmiss | 61077 |