| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
5.7%
|
| 2 | Every few weeks | 21 |
15%
|
| 3 | Every few months | 52 |
37.1%
|
| 4 | Not at all | 59 |
42.1%
|
| Sysmiss | 13 |