| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 4 |
0%
|
| 1 | YES | 970 |
7.3%
|
| 2 | NO | 12241 |
92.3%
|
| 7 | NOT APPLICABLE | 44 |
0.3%
|
| Sysmiss | 4 |