| Value | Category | Cases | |
|---|---|---|---|
| -5 | Other | 0 |
0%
|
| -4 | Missing data | 0 |
0%
|
| -3 | Refused to answer | 0 |
0%
|
| -2 | Not applicable | 0 |
0%
|
| -1 | Don't know | 165 |
100%
|
| Sysmiss | 4200 |