| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1098 |
91.5%
|
| 1 | Yes, once or twice | 37 |
3.1%
|
| 2 | Yes, several times | 36 |
3%
|
| 3 | Yes, often | 19 |
1.6%
|
| 8 | Refused | 2 |
0.2%
|
| 9 | Don't know | 8 |
0.7%
|