| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0%
|
|
| 1 | yes | 1078 |
53.7%
|
| 2 | no | 798 |
39.7%
|
| 777 | 1 |
0%
|
|
| 999 | Missing | 130 |
6.5%
|