| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 606 |
50.5%
|
| 1 | Just once or twice | 174 |
14.5%
|
| 2 | Several times | 212 |
17.7%
|
| 3 | Many times | 124 |
10.3%
|
| 4 | Always | 84 |
7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|