| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.5%
|
|
| 1 | 3 |
0.7%
|
|
| 2 | 1 |
0.2%
|
|
| N1 | 147 |
35.7%
|
|
| N2 | 147 |
35.7%
|
|
| N3 | 62 |
15%
|
|
| N4 | 27 |
6.6%
|
|
| N5 | 11 |
2.7%
|
|
| N6 | 7 |
1.7%
|
|
| N7 | 2 |
0.5%
|
|
| N8 | 3 |
0.7%
|