| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2271 |
78.7%
|
| 1 | Once | 64 |
2.2%
|
| 2 | Twice | 43 |
1.5%
|
| 3 | 3-5 times | 30 |
1%
|
| 4 | 6 times and more | 21 |
0.7%
|
| 5 | I do not know | 0 |
0%
|
| 6 | Not applicable | 457 |
15.8%
|