| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2348 |
81.4%
|
| 1 | Once | 41 |
1.4%
|
| 2 | Twice | 15 |
0.5%
|
| 3 | 3-5 times | 12 |
0.4%
|
| 4 | 6 times and more | 12 |
0.4%
|
| 5 | I do not know | 1 |
0%
|
| 6 | Not applicable | 457 |
15.8%
|