| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 898 |
74.8%
|
| 1 | Once or twice | 146 |
12.2%
|
| 2 | Several times | 114 |
9.5%
|
| 3 | Many times | 30 |
2.5%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 10 |
0.8%
|