| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2550 |
88.4%
|
| 1 | Once | 93 |
3.2%
|
| 2 | Twice | 53 |
1.8%
|
| 3 | 3-5 times | 36 |
1.2%
|
| 4 | 6 times and more | 50 |
1.7%
|
| 5 | I do not know | 1 |
0%
|
| 6 | Not applicable | 103 |
3.6%
|