| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1801 |
62.4%
|
| 1 | Once | 54 |
1.9%
|
| 2 | Twice | 27 |
0.9%
|
| 3 | 3-5 times | 20 |
0.7%
|
| 4 | 6 times and more | 22 |
0.8%
|
| 5 | I do not know | 2 |
0.1%
|
| 6 | Not applicable | 960 |
33.3%
|