| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2995 |
95.1%
|
| 1 | Once | 59 |
1.9%
|
| 2 | Twice | 47 |
1.5%
|
| 3 | 3-5 times | 14 |
0.4%
|
| 4 | More than 6 times | 16 |
0.5%
|
| 5 | I do not know | 0 |
0%
|
| 6 | Not applicable | 19 |
0.6%
|