| Value | Category | Cases | |
|---|---|---|---|
| -99 | 1 |
0.4%
|
|
| 1 | Nouakchott | 185 |
66.8%
|
| 2 | South and Senegal River Region | 72 |
26%
|
| 3 | North Region | 14 |
5.1%
|
| 4 | West Region | 5 |
1.8%
|
| Sysmiss | 49 |