| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1160 |
30.6%
|
|
| 1 | 1533 |
40.5%
|
|
| 888 | 20 |
0.5%
|
|
| 999 | 1075 |
28.4%
|
|
| Sysmiss | 673 |