| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know | 449 |
59.5%
|
| -8 | Refused | 306 |
40.5%
|
| -5 | Not Applicable | 0 |
0%
|
| -3 | Missing | 0 |
0%
|
| Sysmiss | 3665 |