| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 3 |
0%
|
| 1 | YES | 3438 |
25.9%
|
| 2 | NO | 9624 |
72.6%
|
| 7 | NOT APPLICABLE | 195 |
1.5%
|
| Sysmiss | 3 |