| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 5 |
0%
|
| 1 | YES | 2472 |
18.6%
|
| 2 | NO | 10748 |
81.1%
|
| 7 | NOT APPLICABLE | 34 |
0.3%
|
| Sysmiss | 4 |