| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 422 |
94%
|
| 1 | 1 |
0.2%
|
|
| 2 | 1 |
0.2%
|
|
| 6 | 1 |
0.2%
|
|
| 9999995 | missing:impute | 24 |
5.3%
|