| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1093 |
91.1%
|
| 1 | Yes, once or twice | 51 |
4.3%
|
| 2 | Yes, several times | 36 |
3%
|
| 3 | Yes, often | 17 |
1.4%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't know | 2 |
0.2%
|