| Value | Category | Cases | |
|---|---|---|---|
| 40 | 3 |
5.2%
|
|
| 50 | 15 |
25.9%
|
|
| 60 | 24 |
41.4%
|
|
| 70 | 14 |
24.1%
|
|
| 80 | 2 |
3.4%
|
|
| Sysmiss | 791 |