| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
3.9%
|
| 2 | Every few weeks | 39 |
12.8%
|
| 3 | Every few months | 111 |
36.4%
|
| 4 | Not at all | 143 |
46.9%
|
| Sysmiss | 91 |