| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 655 |
54.6%
|
| 1 | Just once or twice | 143 |
11.9%
|
| 2 | Several times | 223 |
18.6%
|
| 3 | Many times | 95 |
7.9%
|
| 4 | Always | 83 |
6.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|