| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 864 |
13.7%
|
| 2 | NO | 4708 |
74.6%
|
| 7 | NOT APPLICABLE | 738 |
11.7%
|
| Sysmiss | 1 |