| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 475 |
7.5%
|
| 2 | NO | 5031 |
79.7%
|
| 7 | NOT APPLICABLE | 804 |
12.7%
|
| Sysmiss | 1 |