| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 3997 |
78.3%
|
| 1 | Once | 126 |
2.5%
|
| 2 | Twice | 135 |
2.6%
|
| 3 | 3-5 times | 169 |
3.3%
|
| 4 | 6 times and more | 308 |
6%
|
| 5 | I do not know | 2 |
0%
|
| 6 | Not applicable | 7 |
0.1%
|
| Sysmiss | 361 |