| Value | Category | Cases | |
|---|---|---|---|
| 1 | 3 |
0.8%
|
|
| 17 | 2 |
0.5%
|
|
| 2 | 40 |
10.3%
|
|
| ? | 127 |
32.7%
|
|
| B2 | 1 |
0.3%
|
|
| N1 | 45 |
11.6%
|
|
| N2 | 117 |
30.2%
|
|
| N3 | 44 |
11.3%
|
|
| N4 | 7 |
1.8%
|
|
| N6 | 2 |
0.5%
|