| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 14 |
0.3%
|
| 1 | YES | 59 |
1.2%
|
| 2 | NO | 3787 |
74.9%
|
| 7 | NOT APPLICABLE | 1197 |
23.7%
|
| Sysmiss | 5620 |