| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1215 |
60.6%
|
| 2 | Just once or twice | 378 |
18.8%
|
| 3 | Several times | 250 |
12.5%
|
| 4 | Many times | 123 |
6.1%
|
| 5 | Always | 35 |
1.7%
|
| 998 | Refused | 2 |
0.1%
|
| 999 | Do not know | 3 |
0.1%
|