| Value | Category | Cases | |
|---|---|---|---|
| 19 | 9 |
3.6%
|
|
| 20 | 41 |
16.5%
|
|
| 21 | 79 |
31.9%
|
|
| 22 | 53 |
21.4%
|
|
| 23 | 25 |
10.1%
|
|
| 24 | 17 |
6.9%
|
|
| 25 | 9 |
3.6%
|
|
| 26 | 8 |
3.2%
|
|
| 27 | 7 |
2.8%
|
|
| Sysmiss | 31 |