| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 20 |
80%
|
| 2 | no | 2 |
8%
|
| 8 | 3 |
12%
|
|
| 9 | na | 0 |
0%
|
| Sysmiss | 2975 |