| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 199 |
3.2%
|
| 2 | NO | 5531 |
87.7%
|
| 7 | NOT APPLICABLE | 579 |
9.2%
|
| Sysmiss | 2 |