| Value | Category | Cases | |
|---|---|---|---|
| 1 | frequently | 2934 |
4.7%
|
| 2 | rarely | 4685 |
7.4%
|
| 3 | no | 23230 |
36.9%
|
| 4 | not needed | 32116 |
51%
|
| Sysmiss | 11 |