| Value | Category | Cases | |
|---|---|---|---|
| N1 | 156 |
37.6%
|
|
| N2 | 123 |
29.6%
|
|
| N3 | 92 |
22.2%
|
|
| N4 | 27 |
6.5%
|
|
| N5 | 9 |
2.2%
|
|
| N6 | 4 |
1%
|
|
| N7 | 1 |
0.2%
|
|
| N8 | 2 |
0.5%
|
|
| N9 | 1 |
0.2%
|