| Value | Category | Cases | |
|---|---|---|---|
| 0 | 41 |
28.5%
|
|
| 15 | 1 |
0.7%
|
|
| 18 | 1 |
0.7%
|
|
| 20 | 4 |
2.8%
|
|
| 23 | 8 |
5.6%
|
|
| 25 | 6 |
4.2%
|
|
| 26 | 16 |
11.1%
|
|
| 27 | 1 |
0.7%
|
|
| 28 | 28 |
19.4%
|
|
| 29 | 1 |
0.7%
|
|
| 30 | 37 |
25.7%
|
|
| Sysmiss | 9 |