| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | No | 1969 |
82%
|
| 1 | Yes, once or twice | 225 |
9.4%
|
| 2 | Yes, several times | 161 |
6.7%
|
| 3 | Yes, often | 45 |
1.9%
|
| 8 | Refused to answer | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|