| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 3788 |
74.2%
|
| 1 | Once | 2 |
0%
|
| 2 | Twice | 6 |
0.1%
|
| 3 | 3-5 times | 2 |
0%
|
| 4 | 6 times and more | 3 |
0.1%
|
| 5 | I do not know | 2 |
0%
|
| 6 | Not applicable | 941 |
18.4%
|
| Sysmiss | 361 |