| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| -7 | DON'T KNOW | 16 |
0.4%
|
| 1 | YES | 78 |
2.1%
|
| 2 | NO | 3701 |
97.5%
|
| Sysmiss | 4216 |