| Value | Category | Cases | |
|---|---|---|---|
| 1 | <= A month ago | 67 |
4.4%
|
| 2 | <= 3 months ago | 151 |
9.8%
|
| 3 | <= 6 months ago | 257 |
16.7%
|
| 4 | <= a Year ago | 221 |
14.4%
|
| 5 | More than a year ago | 838 |
54.5%
|
| 9 | 9.Missing | 3 |
0.2%
|
| Sysmiss | 4832 |