| Value | Category | Cases | |
|---|---|---|---|
| 17 | 4 |
10.5%
|
|
| 18 | 9 |
23.7%
|
|
| 19 | 4 |
10.5%
|
|
| 20 | 6 |
15.8%
|
|
| 21 | 7 |
18.4%
|
|
| 22 | 3 |
7.9%
|
|
| 23 | 3 |
7.9%
|
|
| 24 | 2 |
5.3%
|
|
| Sysmiss | 61 |