| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 21 |
5.9%
|
| 2 | Every few weeks | 74 |
20.7%
|
| 3 | Every few months | 121 |
33.9%
|
| 4 | Not at all | 46 |
12.9%
|
| Sysmiss | 95 |
26.6%
|