| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 19 |
0.2%
|
| 1 | YES | 2455 |
30.7%
|
| 2 | NO | 5404 |
67.5%
|
| 7 | NOT APPLICABLE | 128 |
1.6%
|
| Sysmiss | 5 |