| Value | Category | Cases | |
|---|---|---|---|
| 20 | 1 |
5.3%
|
|
| 40 | 1 |
5.3%
|
|
| 50 | 3 |
15.8%
|
|
| 60 | 3 |
15.8%
|
|
| 70 | 10 |
52.6%
|
|
| 80 | 1 |
5.3%
|
|
| Sysmiss | 830 |