| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 17 |
12.1%
|
| 2 | Every few weeks | 30 |
21.4%
|
| 3 | Every few months | 52 |
37.1%
|
| 4 | Not at all | 41 |
29.3%
|
| Sysmiss | 13 |