| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 48 |
11.4%
|
| 2 | Every few weeks | 104 |
24.7%
|
| 3 | Every few months | 140 |
33.3%
|
| 4 | Not at all | 129 |
30.6%
|
| Sysmiss | 54 |