| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 2108 |
87.8%
|
| 1 | Yes, once or twice | 113 |
4.7%
|
| 2 | Yes, several times | 124 |
5.2%
|
| 3 | Yes, often | 52 |
2.2%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don't know | 2 |
0.1%
|