| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1044 |
82.7%
|
| 1 | Just once or twice | 153 |
12.1%
|
| 2 | Several times | 50 |
4%
|
| 3 | Many times | 9 |
0.7%
|
| 4 | Always | 6 |
0.5%
|
| 9 | Don't Know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|
| Sysmiss | 1 |