| Value | Category | Cases | |
|---|---|---|---|
| 0 | 23 |
0.5%
|
|
| 1 | 505 |
10.8%
|
|
| 98 | 9 |
0.2%
|
|
| 99 | 3 |
0.1%
|
|
| Missing value | 4146 |
88.5%
|