| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
0.9%
|
|
| 12 | 69 |
10.3%
|
|
| 15 | 55 |
8.2%
|
|
| 18 | 39 |
5.8%
|
|
| 21 | 443 |
66.1%
|
|
| 3 | 12 |
1.8%
|
|
| 6 | 11 |
1.6%
|
|
| 9 | 35 |
5.2%
|