| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 396 |
19%
|
| 2 | no | 1541 |
74.1%
|
| 3 | don't know | 144 |
6.9%
|
| 9 | na | 0 |
0%
|
| Sysmiss | 919 |