| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 13947 |
20.5%
|
| 2 | no | 51646 |
75.9%
|
| 3 | (dk) | 1928 |
2.8%
|
| 4 | (ref) | 494 |
0.7%
|
| Sysmiss | 78673 |