| Value | Category | Cases | |
|---|---|---|---|
| N1 | 140 |
43.2%
|
|
| N2 | 110 |
34%
|
|
| N3 | 44 |
13.6%
|
|
| N4 | 14 |
4.3%
|
|
| N5 | 6 |
1.9%
|
|
| N6 | 6 |
1.9%
|
|
| N8 | 2 |
0.6%
|
|
| N9 | 2 |
0.6%
|