| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2959 |
93.9%
|
| 1 | Once | 94 |
3%
|
| 2 | More than once | 92 |
2.9%
|
| 3 | Not applicable | 2 |
0.1%
|
| 4 | No answer/ refused to | 2 |
0.1%
|
| Sysmiss | 1 |