| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 monts ago | 69 |
53.1%
|
| 2 | 12-23 months ago | 50 |
38.5%
|
| 3 | 2 or more years ago | 11 |
8.5%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 1779 |