| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 434 |
36.2%
|
| 1 | Just once or twice | 116 |
9.7%
|
| 2 | Several times | 398 |
33.2%
|
| 3 | Many times | 187 |
15.6%
|
| 4 | Always | 65 |
5.4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|