| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 14 |
10.3%
|
| 2 | Every few weeks | 39 |
28.7%
|
| 3 | Every few months | 62 |
45.6%
|
| 4 | Not at all | 21 |
15.4%
|
| Sysmiss | 26 |