| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 20 |
15.5%
|
| 2 | Every few weeks | 40 |
31%
|
| 3 | Every few months | 60 |
46.5%
|
| 4 | Not at all | 9 |
7%
|
| Sysmiss | 12 |