| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
6.7%
|
| 2 | Every few weeks | 25 |
13%
|
| 3 | Every few months | 84 |
43.5%
|
| 4 | Not at all | 71 |
36.8%
|
| Sysmiss | 23 |