| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 531 |
84.3%
|
| 2 | Only in 1 or 2 months | 6 |
1%
|
| 3 | Almost every month | 5 |
0.8%
|
| 4 | Some months, but not every month | 86 |
13.7%
|
| 5 | Every month | 2 |
0.3%
|
| Sysmiss | 203 |