| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 26 |
9.3%
|
| 2 | Every few weeks | 66 |
23.7%
|
| 3 | Every few months | 105 |
37.6%
|
| 4 | Not at all | 82 |
29.4%
|
| Sysmiss | 63 |