| Value | Category | Cases | |
|---|---|---|---|
| 18 | 13 |
20%
|
|
| 19 | 10 |
15.4%
|
|
| 20 | 9 |
13.8%
|
|
| 21 | 5 |
7.7%
|
|
| 22 | 9 |
13.8%
|
|
| 23 | 4 |
6.2%
|
|
| 24 | 5 |
7.7%
|
|
| 25 | 4 |
6.2%
|
|
| 28 | 3 |
4.6%
|
|
| 30 | 1 |
1.5%
|
|
| 32 | 1 |
1.5%
|
|
| 35 | 1 |
1.5%
|
|
| Sysmiss | 2161 |