| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 months ago | 123 |
7%
|
| 2 | 12-23 months ago | 53 |
3%
|
| 3 | 2 or more years ago | 164 |
9.3%
|
| Sysmiss | 1424 |
80.7%
|