| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year ago | 326 |
18.5%
|
| 2 | Between 1 and 2 years ago | 725 |
41.1%
|
| 20 | More than 2 years ago | 711 |
40.4%
|
| Sysmiss | 1395 |