| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1010 |
84.2%
|
| 1 | Once or twice | 55 |
4.6%
|
| 2 | Several times | 59 |
4.9%
|
| 3 | Often | 13 |
1.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 63 |
5.3%
|