| Value | Category | Cases | |
|---|---|---|---|
| 1 | No, never | 3144 |
86.9%
|
| 2 | Yes, once | 108 |
3%
|
| 3 | Yes, several times | 18 |
0.5%
|
| 4 | Yes, always | 10 |
0.3%
|
| 6 | Don't know | 0 |
0%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 339 |
9.4%
|