Value | Category | Cases | |
---|---|---|---|
-9 | NIU (not in universe) | 2609 |
95.1%
|
2016 | 10 |
0.4%
|
|
2017 | 123 |
4.5%
|
|
9999995 | missing:impute | 1 |
0%
|
Sysmiss | 40 |