| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 10 |
0.1%
|
| 1 | YES | 600 |
7.5%
|
| 2 | NO | 7197 |
89.9%
|
| 7 | NOT APPLICABLE | 196 |
2.4%
|
| Sysmiss | 8 |