| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 5 |
2.4%
|
| 2 | Every few weeks | 40 |
19%
|
| 3 | Every few months | 76 |
36.2%
|
| 4 | Not at all | 54 |
25.7%
|
| Sysmiss | 35 |
16.7%
|