| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 12 months ago | 58 |
29.7%
|
| 2 | 12-23 months ago | 26 |
13.3%
|
| 3 | 2 or more years ago | 111 |
56.9%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 803 |