| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 16 |
0.3%
|
| 1 | YES | 312 |
6.2%
|
| 2 | NO | 4546 |
89.9%
|
| 7 | NOT APPLICABLE | 183 |
3.6%
|
| Sysmiss | 5620 |