| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2717 |
86.3%
|
| 1 | Once | 157 |
5%
|
| 2 | Twice | 106 |
3.4%
|
| 3 | 3-5 times | 74 |
2.3%
|
| 4 | More than 6 times | 73 |
2.3%
|
| 5 | I do not know | 3 |
0.1%
|
| 6 | Not applicable | 20 |
0.6%
|