| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 979 |
71.8%
|
| 2 | 30 minutes to 1 hour | 283 |
20.8%
|
| 3 | 1 - 5 Hours | 97 |
7.1%
|
| 4 | More than 5 Hours | 4 |
0.3%
|
| Sysmiss | 1584 |