| Value | Category | Cases | |
|---|---|---|---|
| 20 | 1596 |
11.4%
|
|
| 50 | 943 |
6.7%
|
|
| 80 | 571 |
4.1%
|
|
| 100 | 1061 |
7.6%
|
|
| Missing value | 9870 |
70.3%
|