| Value | Category | Cases | |
|---|---|---|---|
| 0 | 12 |
1.8%
|
|
| 12 | 113 |
17.1%
|
|
| 15 | 70 |
10.6%
|
|
| 18 | 18 |
2.7%
|
|
| 21 | 317 |
48%
|
|
| 3 | 12 |
1.8%
|
|
| 6 | 29 |
4.4%
|
|
| 9 | 90 |
13.6%
|