| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6-12 months | 38 |
27.9%
|
| 2 | 3-6 months | 38 |
27.9%
|
| 3 | 1-3 months | 51 |
37.5%
|
| 4 | Less than 1 month | 9 |
6.6%
|
| Sysmiss | 6822 |