| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 - Less than 1 month | 68 |
7.5%
|
| 2 | 2 - Between 1 to 3 months | 202 |
22.2%
|
| 3 | 3 - Between 3 to 6 months | 173 |
19.1%
|
| 4 | 4 - More than 6 months | 465 |
51.2%
|
| Sysmiss | 139 |