| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 50 |
0.6%
|
| -7 | DON'T KNOW | 26 |
0.3%
|
| 1 | YES | 13 |
0.2%
|
| 2 | NO | 7912 |
98.9%
|
| Sysmiss | 10 |