| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 10 |
5.8%
|
| 2 | Every few weeks | 44 |
25.6%
|
| 3 | Every few months | 51 |
29.7%
|
| 4 | Not at all | 55 |
32%
|
| Sysmiss | 12 |
7%
|