| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 278 |
9.8%
|
| 2 | no | 2555 |
89.9%
|
| 3 | 2 |
0.1%
|
|
| 9 | 7 |
0.2%
|
|
| Sysmiss | 158 |