| Value | Category | Cases | |
|---|---|---|---|
| B | 11 |
2.6%
|
|
| BG | 6 |
1.4%
|
|
| E | 1 |
0.2%
|
|
| G | 31 |
7.2%
|
|
| W | 378 |
87.7%
|
|
| Z | 4 |
0.9%
|