| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 19 |
0.2%
|
| 1 | YES | 1907 |
23.8%
|
| 2 | NO | 6051 |
75.6%
|
| 7 | NOT APPLICABLE | 29 |
0.4%
|
| Sysmiss | 5 |