| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2720 |
62.2%
|
|
| 1 | 1647 |
37.7%
|
|
| 888 | 1 |
0%
|
|
| 999 | 3 |
0.1%
|
|
| Sysmiss | 90 |