| Value | Category | Cases | |
|---|---|---|---|
| 15 | 2 |
1.4%
|
|
| 20 | 12 |
8.3%
|
|
| 25 | 16 |
11.1%
|
|
| 30 | 33 |
22.9%
|
|
| 35 | 51 |
35.4%
|
|
| 40 | 18 |
12.5%
|
|
| 45 | 11 |
7.6%
|
|
| 50 | 1 |
0.7%
|
|
| Sysmiss | 59 |