| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 10 |
7.6%
|
| 2 | Every few weeks | 22 |
16.8%
|
| 3 | Every few months | 75 |
57.3%
|
| 4 | Not at all | 24 |
18.3%
|
| -99 | 4 | ||
| Sysmiss | 25 |