| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 0 |
0%
|
| 1 | YES | 225 |
5.9%
|
| 2 | NO | 3564 |
93.8%
|
| 7 | NOT APPLICABLE | 11 |
0.3%
|
| Sysmiss | 4211 |