| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 574 |
47.8%
|
| 1 | Just once or twice | 166 |
13.8%
|
| 2 | Several times | 225 |
18.8%
|
| 3 | Many times | 166 |
13.8%
|
| 4 | Always | 60 |
5%
|
| 9 | Do not know | 8 |
0.7%
|
| 98 | Refused | 1 |
0.1%
|