| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 21 |
0.5%
|
| 2 | NO | 2533 |
57.5%
|
| 7 | NOT APPLICABLE | 1851 |
42%
|
| Sysmiss | 4751 |