| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 |
1.5%
|
| 2 | Every few weeks | 66 |
16.5%
|
| 3 | Every few months | 178 |
44.4%
|
| 4 | Not at all | 151 |
37.7%
|
| Sysmiss | 22 |