| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2700 |
95.5%
|
|
| 1 | 59 |
2.1%
|
|
| 888 | 10 |
0.4%
|
|
| 999 | 59 |
2.1%
|
|
| Sysmiss | 2001 |