| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 27 |
8.4%
|
| 2 | Every few weeks | 36 |
11.1%
|
| 3 | Every few months | 66 |
20.4%
|
| 4 | Not at all | 194 |
60.1%
|
| Sysmiss | 45 |