| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
6.7%
|
| 2 | Every few weeks | 52 |
26.8%
|
| 3 | Every few months | 59 |
30.4%
|
| 4 | Not at all | 23 |
11.9%
|
| Sysmiss | 47 |
24.2%
|