| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2358 |
74.9%
|
| 1 | Once | 29 |
0.9%
|
| 2 | Twice | 7 |
0.2%
|
| 3 | 3-5 times | 8 |
0.3%
|
| 4 | More than 6 times | 9 |
0.3%
|
| 5 | I do not know | 1 |
0%
|
| 6 | Not applicable | 738 |
23.4%
|