| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 13 |
0.2%
|
| 1 | YES | 1011 |
12.6%
|
| 2 | NO | 6870 |
85.8%
|
| 7 | NOT APPLICABLE | 111 |
1.4%
|
| Sysmiss | 6 |