| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
8.2%
|
| 2 | Every few weeks | 18 |
18.6%
|
| 3 | Every few months | 47 |
48.5%
|
| 4 | Not at all | 24 |
24.7%
|
| Sysmiss | 17 |