| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 4 |
0%
|
| 1 | YES | 552 |
4.2%
|
| 2 | NO | 12608 |
95.1%
|
| 7 | NOT APPLICABLE | 94 |
0.7%
|
| Sysmiss | 5 |