| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 15 |
0.2%
|
| 1 | YES | 1727 |
21.6%
|
| 2 | NO | 6060 |
75.7%
|
| 7 | NOT APPLICABLE | 204 |
2.5%
|
| Sysmiss | 5 |