| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7 |
1%
|
|
| 2 | 2 |
0.3%
|
|
| 7 | 2 |
0.3%
|
|
| N1 | 667 |
94.5%
|
|
| N2 | 20 |
2.8%
|
|
| N3 | 6 |
0.8%
|
|
| N4 | 2 |
0.3%
|