| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 7 |
0.2%
|
| -888 | -888 | 82 |
1.8%
|
| 1 | Immediately | 4050 |
91.2%
|
| 2 | Otherwise | 301 |
6.8%
|
| Sysmiss | 510 |