| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 1 |
0.5%
|
| 2 | Every few weeks | 53 |
26.6%
|
| 3 | Every few months | 114 |
57.3%
|
| 4 | Not at all | 31 |
15.6%
|
| Sysmiss | 3 |