| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1987 |
68.8%
|
| 1 | Once | 24 |
0.8%
|
| 2 | Twice | 8 |
0.3%
|
| 3 | 3-5 times | 12 |
0.4%
|
| 4 | 6 times and more | 7 |
0.2%
|
| 5 | I do not know | 2 |
0.1%
|
| 6 | Not applicable | 846 |
29.3%
|