| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 37 |
13.9%
|
| 2 | Every few weeks | 57 |
21.4%
|
| 3 | Every few months | 64 |
24.1%
|
| 4 | Not at all | 108 |
40.6%
|
| Sysmiss | 41 |