| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 2047 |
86.1%
|
| 1 | Once or twice | 111 |
4.7%
|
| 2 | Several times | 41 |
1.7%
|
| 3 | Often | 19 |
0.8%
|
| 8 | Refused | 5 |
0.2%
|
| 9 | Don’t know | 155 |
6.5%
|