| Value | Category | Cases | |
|---|---|---|---|
| 21 | 77 |
6.4%
|
|
| 22 | 288 |
24%
|
|
| 23 | 367 |
30.6%
|
|
| 24 | 78 |
6.5%
|
|
| 25 | 294 |
24.5%
|
|
| 26 | 63 |
5.3%
|
|
| 31 | 5 |
0.4%
|
|
| 99 | Missing data | 28 |
2.3%
|