| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 633 |
52.8%
|
| 1 | Just once or twice | 186 |
15.5%
|
| 2 | Several times | 209 |
17.4%
|
| 3 | Many times | 87 |
7.3%
|
| 4 | Always | 83 |
6.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 2 |
0.2%
|