| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 54 |
0.5%
|
| 1 | YES | 263 |
2.5%
|
| 2 | NO | 8662 |
81.1%
|
| 7 | NOT APPLICABLE | 1696 |
15.9%
|
| Sysmiss | 2 |