| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12months ago | 911 |
35.4%
|
| 2 | 12-23 months ago | 836 |
32.4%
|
| 3 | 2 or more years ago | 830 |
32.2%
|
| Sysmiss | 17263 |