| Value | Category | Cases | |
|---|---|---|---|
| -99 | 12 |
6.9%
|
|
| 1 | Cairo | 148 |
85.5%
|
| 2 | Delta Governorates | 5 |
2.9%
|
| 3 | Upper Egypt Governorates | 2 |
1.2%
|
| 4 | Other | 6 |
3.5%
|
| Sysmiss | 30 |