| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
2.2%
|
| 2 | Every few weeks | 7 |
5.1%
|
| 3 | Every few months | 42 |
30.7%
|
| 4 | Not at all | 85 |
62%
|
| Sysmiss | 16 |