| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 37 |
0.3%
|
| 1 | YES | 502 |
4.7%
|
| 2 | NO | 8920 |
83.6%
|
| 7 | NOT APPLICABLE | 1216 |
11.4%
|
| Sysmiss | 2 |