| Value | Category | Cases | |
|---|---|---|---|
| 0 | 856 |
33.1%
|
|
| 1 | 41 |
1.6%
|
|
| 888 | 1 |
0%
|
|
| 999 | 1692 |
65.3%
|
|
| Sysmiss | 1991 |