| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 187 |
15.6%
|
| 1 | Just once or twice | 140 |
11.7%
|
| 2 | Several times | 180 |
15%
|
| 3 | Many times | 329 |
27.4%
|
| 4 | Always | 361 |
30.1%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 3 |
0.3%
|