| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
5.6%
|
| -8 | Refused | 0 |
0%
|
| -5 | Not Applicable | 0 |
0%
|
| -3 | Missing | 15 |
83.3%
|
| 0 | 2 |
11.1%
|
|
| Sysmiss | 7278 |