| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 months ago | 334 |
41.6%
|
| 2 | 12-23 months ago | 199 |
24.8%
|
| 3 | 2 or more years ago | 269 |
33.5%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 2709 |