| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 722 |
30.1%
|
| 1 | Just once or twice | 509 |
21.2%
|
| 2 | Several times | 521 |
21.7%
|
| 3 | Many times | 448 |
18.7%
|
| 4 | Always | 196 |
8.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 4 |
0.2%
|