| Value | Category | Cases | |
|---|---|---|---|
| -8 | other error | 0 |
0%
|
| -7 | filter error | 0 |
0%
|
| -4 | chronic problem | 62 |
0.4%
|
| -3 | inapplicable | 15898 |
99.5%
|
| -2 | no answer | 8 |
0.1%
|
| -1 | does not know | 9 |
0.1%
|