| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
6%
|
| 2 | Every few weeks | 16 |
7.4%
|
| 3 | Every few months | 57 |
26.3%
|
| 4 | Not at all | 131 |
60.4%
|
| Sysmiss | 33 |