| Value | Category | Cases | |
|---|---|---|---|
| . | 1 |
0.1%
|
|
| N1 | 604 |
73.1%
|
|
| N2 | 148 |
17.9%
|
|
| N3 | 36 |
4.4%
|
|
| N4 | 18 |
2.2%
|
|
| N5 | 4 |
0.5%
|
|
| N6 | 9 |
1.1%
|
|
| N99 | 6 |
0.7%
|