| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 0 |
0%
|
| -888 | -888 | 0 |
0%
|
| 1 | In the last year | 1 |
50%
|
| 2 | More than a year ago | 1 |
50%
|
| Sysmiss | 4948 |