| Value | Category | Cases | |
|---|---|---|---|
| 1 | LESS THAN 12 MONTHS AGO | 504 |
5.9%
|
| 2 | 12-23 MONTHS AGO | 309 |
3.6%
|
| 3 | 2 OR MORE YEARS AGO | 897 |
10.5%
|
| Sysmiss | 6801 |
79.9%
|