| Value | Category | Cases | |
|---|---|---|---|
| N1 | 199 |
68.4%
|
|
| N2 | 51 |
17.5%
|
|
| N3 | 17 |
5.8%
|
|
| N4 | 5 |
1.7%
|
|
| N5 | 4 |
1.4%
|
|
| N6 | 3 |
1%
|
|
| N7 | 1 |
0.3%
|
|
| N9 | 11 |
3.8%
|