| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
0.4%
|
|
| 12 | 50 |
7%
|
|
| 15 | 62 |
8.7%
|
|
| 18 | 50 |
7%
|
|
| 21 | 527 |
73.7%
|
|
| 3 | 1 |
0.1%
|
|
| 6 | 2 |
0.3%
|
|
| 9 | 20 |
2.8%
|