| Value | Category | Cases | |
|---|---|---|---|
| N1 | 126 |
44.1%
|
|
| N2 | 105 |
36.7%
|
|
| N3 | 29 |
10.1%
|
|
| N4 | 21 |
7.3%
|
|
| N5 | 3 |
1%
|
|
| N6 | 2 |
0.7%
|