| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 772 |
64.3%
|
| 1 | Just once or twice | 94 |
7.8%
|
| 2 | Several times | 184 |
15.3%
|
| 3 | Many times | 93 |
7.8%
|
| 4 | Always | 54 |
4.5%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't know | 2 |
0.2%
|