| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not even once | 9 |
40.9%
|
| 2 | once | 0 |
0%
|
| 3 | twice | 5 |
22.7%
|
| 4 | more than two times | 8 |
36.4%
|
| Sysmiss | Don't know | 0 | |
| Sysmiss | Not applicable | 0 | |
| Sysmiss | Others | 0 | |
| Sysmiss | Can't reveal | 0 | |
| Sysmiss | 4181 |