| Value | Category | Cases | |
|---|---|---|---|
| 0 | 383 |
30.7%
|
|
| 1 | 522 |
41.8%
|
|
| 888 | 5 |
0.4%
|
|
| 999 | 338 |
27.1%
|
|
| Sysmiss | 322 |