| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1203 |
50.1%
|
| 1 | Just once or twice | 183 |
7.6%
|
| 2 | Several times | 408 |
17%
|
| 3 | Many times | 380 |
15.8%
|
| 4 | Always | 225 |
9.4%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don't know | 0 |
0%
|