| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 5 |
5.3%
|
| 2 | Every few weeks | 4 |
4.3%
|
| 3 | Every few months | 22 |
23.4%
|
| 4 | Not at all | 63 |
67%
|
| Sysmiss | 19 |