| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 1 |
1%
|
| 2 | Every few weeks | 7 |
6.7%
|
| 3 | Every few months | 50 |
48.1%
|
| 4 | Not at all | 46 |
44.2%
|
| Sysmiss | 25 |