| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1030 |
85.8%
|
| 1 | Once or twice | 77 |
6.4%
|
| 2 | Several times | 43 |
3.6%
|
| 3 | Often | 18 |
1.5%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don’t know | 31 |
2.6%
|