| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1032 |
86.1%
|
| 1 | Just once or twice | 109 |
9.1%
|
| 2 | Several times | 34 |
2.8%
|
| 3 | Many times | 15 |
1.3%
|
| 4 | Always | 4 |
0.3%
|
| 9 | Don’t know | 4 |
0.3%
|
| 98 | Refused | 0 |
0%
|