| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 28 |
30.1%
|
| 2 | Every few weeks | 51 |
54.8%
|
| 3 | Every few months | 11 |
11.8%
|
| 4 | Not at all | 3 |
3.2%
|
| Sysmiss | 29 |