Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 2592 |
94.6%
|
2016 | 41 |
1.5%
|
|
2017 | 108 |
3.9%
|
|
9999995 | missing:impute | 0 |
0%
|
Sysmiss | 42 |