| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 921 |
76.8%
|
| 1 | Once or twice | 212 |
17.7%
|
| 2 | Several times | 47 |
3.9%
|
| 3 | Many times | 19 |
1.6%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 1 |
0.1%
|