| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 2511 |
22.8%
|
| 2 | no | 7990 |
72.7%
|
| 5 | refuse | 4 |
0%
|
| 8 | dk | 486 |
4.4%
|
| Sysmiss | 40317 |