| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 10 |
8.6%
|
| 2 | Every few weeks | 6 |
5.2%
|
| 3 | Every few months | 29 |
25%
|
| 4 | Not at all | 71 |
61.2%
|
| Sysmiss | 32 |