| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 24 |
20.2%
|
| 2 | Every few weeks | 45 |
37.8%
|
| 3 | Every few months | 35 |
29.4%
|
| 4 | Not at all | 15 |
12.6%
|
| Sysmiss | 29 |