| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 903 |
71.6%
|
| 1 | Just once or twice | 170 |
13.5%
|
| 2 | Several times | 140 |
11.1%
|
| 3 | Many times | 29 |
2.3%
|
| 4 | Always | 19 |
1.5%
|
| 9 | Don't Know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|
| Sysmiss | 2 |