| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.4%
|
|
| 12 | 41 |
7.2%
|
|
| 15 | 31 |
5.5%
|
|
| 18 | 18 |
3.2%
|
|
| 21 | 438 |
77.2%
|
|
| 3 | 7 |
1.2%
|
|
| 6 | 6 |
1.1%
|
|
| 9 | 24 |
4.2%
|