| Value | Category | Cases | |
|---|---|---|---|
| 1 | agadez | 2 |
2.6%
|
| 2 | diffa | 2 |
2.6%
|
| 3 | dosso | 4 |
5.1%
|
| 4 | maradi | 14 |
17.9%
|
| 5 | niamey | 20 |
25.6%
|
| 6 | tahoua | 3 |
3.8%
|
| 7 | tillaberi | 12 |
15.4%
|
| 8 | zinder | 21 |
26.9%
|