| Value | Category | Cases | |
|---|---|---|---|
| -8 | other error | 0 |
0%
|
| -7 | filter error | 0 |
0%
|
| -3 | inapplicable | 15538 |
99.6%
|
| -2 | no answer | 31 |
0.2%
|
| -1 | does not know | 38 |
0.2%
|