| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 2183 |
77%
|
| 2 | 30 minutes to 1 hour | 493 |
17.4%
|
| 3 | 1 - 5 Hours | 153 |
5.4%
|
| 4 | More than 5 Hours | 6 |
0.2%
|
| Sysmiss | 112 |