| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 653 |
54.4%
|
| 1 | Just once or twice | 133 |
11.1%
|
| 2 | Several times | 148 |
12.3%
|
| 3 | Many times | 146 |
12.2%
|
| 4 | Always | 119 |
9.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|