| Value | Category | Cases | |
|---|---|---|---|
| A | 1 |
0.4%
|
|
| AB | 9 |
3.7%
|
|
| ABC | 61 |
25%
|
|
| B | 19 |
7.8%
|
|
| BC | 135 |
55.3%
|
|
| C | 18 |
7.4%
|
|
| Z | 1 |
0.4%
|