| Value | Category | Cases | |
|---|---|---|---|
| 0 | 5 |
1%
|
|
| 12 | 103 |
20%
|
|
| 15 | 41 |
7.9%
|
|
| 18 | 28 |
5.4%
|
|
| 21 | 269 |
52.1%
|
|
| 3 | 1 |
0.2%
|
|
| 6 | 5 |
1%
|
|
| 9 | 64 |
12.4%
|