| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year ago | 70 |
14.8%
|
| 2 | Between 1 and 2 years ago | 169 |
35.8%
|
| 20 | More than 2 years ago | 233 |
49.4%
|
| Sysmiss | 2685 |