| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2291 |
79.4%
|
| 1 | Once | 181 |
6.3%
|
| 2 | Twice | 111 |
3.8%
|
| 3 | 3-5 times | 100 |
3.5%
|
| 4 | 6 times and more | 99 |
3.4%
|
| 5 | I do not know | 3 |
0.1%
|
| 6 | Not applicable | 101 |
3.5%
|