| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 6 |
0.1%
|
| -888 | -888 | 128 |
2.9%
|
| 1 | Head | 4267 |
96.1%
|
| 2 | Buttock | 13 |
0.3%
|
| 4 | Hands/Foot | 26 |
0.6%
|
| 5 | Cord | 0 |
0%
|
| Sysmiss | 510 |