| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 56 |
20.9%
|
| 2 | Every few weeks | 54 |
20.1%
|
| 3 | Every few months | 58 |
21.6%
|
| 4 | Not at all | 100 |
37.3%
|
| Sysmiss | 59 |