| Value | Category | Cases | |
|---|---|---|---|
| 0 | 14 |
24.1%
|
|
| 1 | 4 |
6.9%
|
|
| 15 | 1 |
1.7%
|
|
| 4 | 1 |
1.7%
|
|
| 6 | 1 |
1.7%
|
|
| N1 | 6 |
10.3%
|
|
| N2 | 6 |
10.3%
|
|
| N3 | 9 |
15.5%
|
|
| N4 | 7 |
12.1%
|
|
| N5 | 7 |
12.1%
|
|
| N6 | 2 |
3.4%
|