| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2247 |
77.9%
|
| 1 | Once | 73 |
2.5%
|
| 2 | Twice | 45 |
1.6%
|
| 3 | 3-5 times | 31 |
1.1%
|
| 4 | 6 times and more | 32 |
1.1%
|
| 5 | I do not know | 1 |
0%
|
| 6 | Not applicable | 457 |
15.8%
|