| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 months ago | 4976 |
43.8%
|
| 2 | 12-23 months ago | 3354 |
29.5%
|
| 3 | 2 or more years ago | 2979 |
26.2%
|
| 9 | Missing | 52 |
0.5%
|
| Sysmiss | 24815 |