| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 39 |
7.4%
|
| 2 | Every few weeks | 99 |
18.8%
|
| 3 | Every few months | 211 |
40%
|
| 4 | Not at all | 179 |
33.9%
|
| Sysmiss | 35 |