| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 0 |
0%
|
| 2 | Every few weeks | 3 |
3.2%
|
| 3 | Every few months | 19 |
20.4%
|
| 4 | Not at all | 71 |
76.3%
|
| Sysmiss | 21 |