| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 4395 |
86.1%
|
| 1 | Once | 91 |
1.8%
|
| 2 | Twice | 96 |
1.9%
|
| 3 | 3-5 times | 76 |
1.5%
|
| 4 | More than 6 times | 79 |
1.5%
|
| 5 | I do not know | 0 |
0%
|
| 6 | Not applicable | 7 |
0.1%
|
| Sysmiss | 361 |