| Value | Category | Cases | |
|---|---|---|---|
| 1 | Often | 4100 |
4.7%
|
| 2 | Sometimes | 11490 |
13.1%
|
| 3 | Rarely | 16582 |
18.9%
|
| 4 | Never | 55623 |
63.4%
|
| -5 | DE:Inapplicable; HT: Dropped out survey; Unknown | 56 | |
| -4 | Not asked in survey | 0 | |
| -3 | Not applicable | 0 | |
| -2 | No answer | 815 | |
| -1 | Don't know | 899 |