| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 months ago | 496 |
42%
|
| 2 | 12-23 months ago | 235 |
19.9%
|
| 3 | 2 or more years ago | 448 |
38%
|
| 9 | Missing | 1 |
0.1%
|
| Sysmiss | 4005 |