| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 11 |
0.6%
|
| 2 | no | 1765 |
99.2%
|
| 7 | dk | 3 |
0.2%
|
| 8 | ra | 1 |
0.1%
|
| Sysmiss | 375 |