| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 22 |
7.9%
|
| 2 | Every few weeks | 51 |
18.3%
|
| 3 | Every few months | 95 |
34.1%
|
| 4 | Not at all | 111 |
39.8%
|
| Sysmiss | 48 |