| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
7.3%
|
| 2 | Every few weeks | 17 |
17.7%
|
| 3 | Every few months | 23 |
24%
|
| 4 | Not at all | 49 |
51%
|
| Sysmiss | 13 |