| Value | Category | Cases | |
|---|---|---|---|
| 0 | 10 |
15.4%
|
|
| 1 | 1 |
1.5%
|
|
| 2 | 2 |
3.1%
|
|
| N 4 | 1 |
1.5%
|
|
| N1 | 8 |
12.3%
|
|
| N2 | 21 |
32.3%
|
|
| N3 | 7 |
10.8%
|
|
| N4 | 12 |
18.5%
|
|
| N5 | 1 |
1.5%
|
|
| N6 | 2 |
3.1%
|