| Value | Category | Cases | |
|---|---|---|---|
| 1 | LESS THAN 12 MONTHS AGO | 6 |
1%
|
| 2 | 12-23 MONTHS AGO | 1 |
0.2%
|
| 3 | 2 OR MORE YEARS AGO | 9 |
1.5%
|
| Sysmiss | 575 |
97.3%
|