| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 35 |
16.9%
|
| 2 | Every few weeks | 60 |
29%
|
| 3 | Every few months | 77 |
37.2%
|
| 4 | Not at all | 35 |
16.9%
|
| -99 | 13 | ||
| Sysmiss | 34 |