| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
3.3%
|
| 2 | Every few weeks | 21 |
5.8%
|
| 3 | Every few months | 77 |
21.4%
|
| 4 | Not at all | 159 |
44.3%
|
| Sysmiss | 90 |
25.1%
|