| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 5392 |
58.7%
|
| 2 | 30 minutes to 1 hour | 1752 |
19.1%
|
| 3 | 1 - 5 Hours | 1865 |
20.3%
|
| 4 | More than 5 Hours | 170 |
1.9%
|
| Sysmiss | 296 |