| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 614 |
15.7%
|
| 2 | Once a month | 1068 |
27.4%
|
| 3 | Several times a month | 1003 |
25.7%
|
| 4 | Once a week | 830 |
21.3%
|
| 5 | Several times a week | 386 |
9.9%
|