| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1122 |
93.5%
|
| 1 | Yes, once or twice | 34 |
2.8%
|
| 2 | Yes, several times | 38 |
3.2%
|
| 3 | Yes, often | 4 |
0.3%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't know | 1 |
0.1%
|