| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 4315 |
82%
|
| 2 | 30 minutes to 1 hour | 766 |
14.6%
|
| 3 | 1 - 5 Hours | 169 |
3.2%
|
| 4 | More than 5 Hours | 9 |
0.2%
|
| Sysmiss | 58 |