| Value | Category | Cases | |
|---|---|---|---|
| 1 | only once or twice | 108 |
10.5%
|
| 2 | in some months but not every month | 525 |
50.8%
|
| 3 | almost every month | 395 |
38.2%
|
| 98 | don't know | 5 |
0.5%
|
| Sysmiss | 981 |