| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2324 |
53.9%
|
|
| 1 | 1832 |
42.5%
|
|
| 888 | 7 |
0.2%
|
|
| 999 | 151 |
3.5%
|
|
| Sysmiss | 147 |