| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
8.1%
|
| 2 | Every few weeks | 21 |
21.2%
|
| 3 | Every few months | 30 |
30.3%
|
| 4 | Not at all | 40 |
40.4%
|
| Sysmiss | 14 |