| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
3.3%
|
| 2 | Every few weeks | 60 |
24.6%
|
| 3 | Every few months | 123 |
50.4%
|
| 4 | Not at all | 53 |
21.7%
|
| Sysmiss | 50 |