| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
6.3%
|
| 2 | Every few weeks | 37 |
21%
|
| 3 | Every few months | 76 |
43.2%
|
| 4 | Not at all | 52 |
29.5%
|
| Sysmiss | 20 |