| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 781 |
65.1%
|
| 1 | Just once or twice | 170 |
14.2%
|
| 2 | Several times | 127 |
10.6%
|
| 3 | Many times | 69 |
5.8%
|
| 4 | Always | 52 |
4.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|