| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 0 |
0%
|
| 2 | Every few weeks | 3 |
4.7%
|
| 3 | Every few months | 18 |
28.1%
|
| 4 | Not at all | 43 |
67.2%
|
| Sysmiss | 22 |