| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once or twice | 159 |
60.9%
|
| 2 | In some months, but not every months | 90 |
34.5%
|
| 3 | In every month | 11 |
4.2%
|
| 8 | Don't know | 0 |
0%
|
| 9 | Refused | 1 |
0.4%
|
| Sysmiss | 19650 |