| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 months ago | 2519 |
43.1%
|
| 2 | 12-23 months ago | 923 |
15.8%
|
| 3 | 2 or more years ago | 2399 |
41.1%
|
| Sysmiss | 7616 |