| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the past 30 days | 1604 |
86.5%
|
| 2 | Within the past 31-90 days | 178 |
9.6%
|
| 3 | Within the past 4-6 months | 33 |
1.8%
|
| 4 | More than 6 months ago | 39 |
2.1%
|
| Sysmiss | 645 |