| Value | Category | Cases | |
|---|---|---|---|
| 1 | always | 6064 |
10.4%
|
| 2 | often | 1740 |
3%
|
| 3 | not often | 574 |
1%
|
| 4 | not needed | 44928 |
77.1%
|
| 5 | no | 4968 |
8.5%
|
| Sysmiss | 14703 |