| Value | Category | Cases | |
|---|---|---|---|
| B | 60 |
17.3%
|
|
| BG | 4 |
1.2%
|
|
| BV | 2 |
0.6%
|
|
| G | 37 |
10.7%
|
|
| V | 4 |
1.2%
|
|
| W | 223 |
64.5%
|
|
| Z | 16 |
4.6%
|