| Value | Category | Cases | |
|---|---|---|---|
| 10 | 3 |
5.5%
|
|
| 15 | 4 |
7.3%
|
|
| 20 | 10 |
18.2%
|
|
| 25 | 2 |
3.6%
|
|
| 30 | 21 |
38.2%
|
|
| 40 | 8 |
14.5%
|
|
| 50 | 7 |
12.7%
|
|
| Sysmiss | 585 |