| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know | 1430 |
91.6%
|
| -8 | Refused | 131 |
8.4%
|
| -5 | Not Applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| Sysmiss | 2189 |