| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 796 |
66.3%
|
| 1 | Yes, once or twice | 115 |
9.6%
|
| 2 | Yes, several times | 154 |
12.8%
|
| 3 | Yes, often | 135 |
11.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|