| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
12.5%
|
| -8 | Refused | 0 |
0%
|
| 1 | 1 |
12.5%
|
|
| 6 | 1 |
12.5%
|
|
| 10 | 4 |
50%
|
|
| 60 | 1 |
12.5%
|
|
| Sysmiss | 1987 |