| Value | Category | Cases | |
|---|---|---|---|
| B | 21 |
4.9%
|
|
| BG | 20 |
4.6%
|
|
| E | 1 |
0.2%
|
|
| G | 76 |
17.6%
|
|
| W | 310 |
71.9%
|
|
| Z | 3 |
0.7%
|