| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 3 |
0.1%
|
| 2 | NO | 1719 |
39%
|
| 7 | NOT APPLICABLE | 2683 |
60.9%
|
| Sysmiss | 4751 |