| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0%
|
| 0 | Never | 21081 |
86.6%
|
| 1 | Just once or twice | 2124 |
8.7%
|
| 2 | Several times | 632 |
2.6%
|
| 3 | Many times | 331 |
1.4%
|
| 4 | Always | 142 |
0.6%
|
| 9 | Don't Know | 36 |
0.1%
|
| 998 | Refused | 0 |
0%
|
| Sysmiss | 1048 |