| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2511 |
87%
|
| 1 | Once | 129 |
4.5%
|
| 2 | Twice | 91 |
3.2%
|
| 3 | 3-5 times | 60 |
2.1%
|
| 4 | 6 times and more | 68 |
2.4%
|
| 5 | I do not know | 4 |
0.1%
|
| 6 | Not applicable | 23 |
0.8%
|