| Value | Category | Cases | |
|---|---|---|---|
| 10 | 801 |
24.6%
|
|
| 20 | 40 |
1.2%
|
|
| 30 | 1188 |
36.5%
|
|
| 9999 | 1202 |
36.9%
|
|
| Missing value | 23 |
0.7%
|