| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 1940 |
62.6%
|
| 2 | 30 minutes to 1 hour | 590 |
19%
|
| 3 | 1 - 5 Hours | 535 |
17.3%
|
| 4 | More than 5 Hours | 33 |
1.1%
|
| Sysmiss | 452 |