Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 11 |
0.9%
|
0 | Never | 638 |
53.2%
|
1 | Once or twice | 50 |
4.2%
|
2 | Several times | 24 |
2%
|
3 | Many times | 4 |
0.3%
|
7 | Not applicable/Saw no problems | 469 |
39.1%
|
9 | Don't know | 4 |
0.3%
|