| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 466 |
38.8%
|
| 1 | Just once or twice | 266 |
22.2%
|
| 2 | Several times | 285 |
23.8%
|
| 3 | Many times | 109 |
9.1%
|
| 4 | Always | 72 |
6%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 2 |
0.2%
|