| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1078 |
89.9%
|
| 1 | Once or twice | 35 |
2.9%
|
| 2 | Several times | 56 |
4.7%
|
| 3 | Many times | 28 |
2.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 2 |
0.2%
|