| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 18 |
7.8%
|
| 2 | Every few weeks | 70 |
30.2%
|
| 3 | Every few months | 75 |
32.3%
|
| 4 | Not at all | 69 |
29.7%
|
| Sysmiss | 25 |