| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 1229 |
43.4%
|
| 2 | no | 1593 |
56.3%
|
| 9 | 8 |
0.3%
|
|
| Sysmiss | 170 |