| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
3%
|
| 2 | Every few weeks | 6 |
5.9%
|
| 3 | Every few months | 33 |
32.7%
|
| 4 | Not at all | 59 |
58.4%
|
| Sysmiss | 28 |