| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 24 |
6.7%
|
| 2 | Every few weeks | 58 |
16.2%
|
| 3 | Every few months | 131 |
36.7%
|
| 4 | Not at all | 48 |
13.4%
|
| Sysmiss | 96 |
26.9%
|