| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 18 |
0.2%
|
| -7 | DON'T KNOW | 2936 |
36.7%
|
| 1 | YES | 3723 |
46.5%
|
| 2 | NO | 1324 |
16.5%
|
| Sysmiss | 10 |