| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 21 |
18.3%
|
| 2 | Every few weeks | 33 |
28.7%
|
| 3 | Every few months | 34 |
29.6%
|
| 4 | Not at all | 27 |
23.5%
|
| Sysmiss | 49 |