| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 8 hours | 936 |
8.1%
|
| 2 | From 8-16 hours. | 2936 |
25.4%
|
| 3 | From 17-23 hours | 1571 |
13.6%
|
| 4 | 24 hours | 6102 |
52.9%
|