| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 39 |
10.5%
|
| 2 | Every few weeks | 70 |
18.8%
|
| 3 | Every few months | 143 |
38.3%
|
| 4 | Not at all | 121 |
32.4%
|
| Sysmiss | 48 |