| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 13 |
0.1%
|
| -7 | DON'T KNOW | 1699 |
15.9%
|
| 1 | YES | 7675 |
71.9%
|
| 2 | NO | 1284 |
12%
|
| Sysmiss | 6 |