| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 37 |
6.9%
|
| 2 | Every few weeks | 139 |
25.9%
|
| 3 | Every few months | 195 |
36.4%
|
| 4 | Not at all | 165 |
30.8%
|
| Sysmiss | 27 |