| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 4625 |
90.6%
|
| 1 | Once | 22 |
0.4%
|
| 2 | Twice | 30 |
0.6%
|
| 3 | 3-5 times | 26 |
0.5%
|
| 4 | 6 times and more | 31 |
0.6%
|
| 5 | I do not know | 3 |
0.1%
|
| 6 | Not applicable | 7 |
0.1%
|
| Sysmiss | 361 |