| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 809 |
67.4%
|
| 1 | Just once or twice | 225 |
18.8%
|
| 2 | Several times | 138 |
11.5%
|
| 3 | Many times | 18 |
1.5%
|
| 4 | Always | 10 |
0.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 0 |
0%
|