| Value | Category | Cases | |
|---|---|---|---|
| 10 | 554 |
17%
|
|
| 20 | 80 |
2.5%
|
|
| 30 | 533 |
16.4%
|
|
| 9999 | 2064 |
63.4%
|
|
| Missing value | 23 |
0.7%
|