| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 35 |
12.2%
|
| 2 | Every few weeks | 62 |
21.5%
|
| 3 | Every few months | 107 |
37.2%
|
| 4 | Not at all | 84 |
29.2%
|
| Sysmiss | 13 |