| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 406 |
33.8%
|
| 1 | Just once or twice | 219 |
18.3%
|
| 2 | Several times | 281 |
23.4%
|
| 3 | Many times | 231 |
19.3%
|
| 4 | Always | 58 |
4.8%
|
| 8 | Refused | 3 |
0.3%
|
| 9 | Don't Know | 2 |
0.2%
|