| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 765 |
60.7%
|
| 1 | Just once or twice | 219 |
17.4%
|
| 2 | Several times | 222 |
17.6%
|
| 3 | Many times | 42 |
3.3%
|
| 4 | Always | 11 |
0.9%
|
| 9 | Don't Know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|
| Sysmiss | 4 |