| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 329 |
2.3%
|
| 2 | no | 8572 |
59%
|
| 3 | n.a | 5235 |
36%
|
| 4 | don't know | 394 |
2.7%
|
| Sysmiss | 34656 |