| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 2606 |
95%
|
| 1 | boy | 58 |
2.1%
|
| 2 | girl | 78 |
2.8%
|
| 3 | twins:boys | 0 |
0%
|
| 4 | twins:girls | 1 |
0%
|
| 5 | twins:boy+girl | 0 |
0%
|
| 9999995 | missing:impute | 0 |
0%
|
| Sysmiss | 40 |