| Value | Category | Cases | |
|---|---|---|---|
| 40 | 1 |
4.3%
|
|
| 50 | 1 |
4.3%
|
|
| 60 | 3 |
13%
|
|
| 70 | 18 |
78.3%
|
|
| Sysmiss | 13 |