| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2547 |
80.9%
|
| 1 | Once | 16 |
0.5%
|
| 2 | Twice | 10 |
0.3%
|
| 3 | 3-5 times | 3 |
0.1%
|
| 4 | More than 6 times | 8 |
0.3%
|
| 5 | I do not know | 0 |
0%
|
| 6 | Not applicable | 566 |
18%
|