| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 24 |
10.3%
|
| 2 | Every few weeks | 41 |
17.7%
|
| 3 | Every few months | 99 |
42.7%
|
| 4 | Not at all | 68 |
29.3%
|
| Sysmiss | 28 |