| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 98 |
2.6%
|
| 2 | NO | 3678 |
96.8%
|
| 7 | NOT APPLICABLE | 24 |
0.6%
|
| Sysmiss | 4211 |