| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 19 |
6.5%
|
| 1 | Yes | 269 |
91.5%
|
| 8 | DK | 5 |
1.7%
|
| 9 | 1 |
0.3%
|
|
| Sysmiss | 841 |