| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 2 years ago | 15 |
71.4%
|
| 2 | 2 years to less than 5 years ago | 3 |
14.3%
|
| 3 | 5 years or more ago | 3 |
14.3%
|
| Sysmiss | 4523 |