| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 359 |
17.3%
|
| 2 | no | 1182 |
57.1%
|
| 3 | don't know | 11 |
0.5%
|
| 4 | work does not require | 517 |
25%
|
| 9 | na | 0 |
0%
|
| 99 | 1 |
0%
|
|
| Sysmiss | 930 |