| Value | Category | Cases | |
|---|---|---|---|
| 1 | frequently | 2285 |
3.6%
|
| 2 | rarely | 3990 |
6.3%
|
| 3 | no | 33330 |
52.9%
|
| 4 | not needed | 23363 |
37.1%
|
| Sysmiss | 8 |