| Value | Category | Cases | |
|---|---|---|---|
| N1 | 81 |
56.6%
|
|
| N2 | 41 |
28.7%
|
|
| N3 | 12 |
8.4%
|
|
| N4 | 4 |
2.8%
|
|
| N5 | 3 |
2.1%
|
|
| N7 | 2 |
1.4%
|