| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 12 |
0.8%
|
| 0 | Never | 1424 |
89.1%
|
| 1 | Once or twice | 83 |
5.2%
|
| 2 | Several times | 45 |
2.8%
|
| 3 | Many times | 25 |
1.6%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 10 |
0.6%
|