| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 759 |
63.3%
|
| 1 | Once or twice | 164 |
13.7%
|
| 2 | Several times | 210 |
17.5%
|
| 3 | Many times | 66 |
5.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 1 |
0.1%
|