| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
6.2%
|
| 2 | Every few weeks | 51 |
28.7%
|
| 3 | Every few months | 57 |
32%
|
| 4 | Not at all | 59 |
33.1%
|
| Sysmiss | 18 |