| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
7%
|
| 2 | Every few weeks | 19 |
12%
|
| 3 | Every few months | 40 |
25.3%
|
| 4 | Not at all | 88 |
55.7%
|
| Sysmiss | 42 |