| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1 |
0.2%
|
| 2 | no | 491 |
75.1%
|
| 8 | 2 |
0.3%
|
|
| 9 | no response | 160 |
24.5%
|
| Sysmiss | 3349 |