| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 35 |
10.9%
|
| 2 | Every few weeks | 92 |
28.6%
|
| 3 | Every few months | 151 |
46.9%
|
| 4 | Not at all | 44 |
13.7%
|
| Sysmiss | 71 |