| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 43 |
0.4%
|
| 1 | YES | 249 |
2.3%
|
| 2 | NO | 8914 |
83.5%
|
| 7 | NOT APPLICABLE | 1469 |
13.8%
|
| Sysmiss | 2 |