| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 24 |
11.9%
|
| 2 | Every few weeks | 60 |
29.7%
|
| 3 | Every few months | 88 |
43.6%
|
| 4 | Not at all | 30 |
14.9%
|
| Sysmiss | 36 |