| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1295 |
44.9%
|
| 1 | Once | 193 |
6.7%
|
| 2 | Twice | 171 |
5.9%
|
| 3 | 3-5 times | 128 |
4.4%
|
| 4 | 6 times and more | 205 |
7.1%
|
| 5 | I do not know | 2 |
0.1%
|
| 6 | Not applicable | 892 |
30.9%
|