| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than or equal to 1 hour | 577 |
80.4%
|
| 2 | More than 1 hour to 24 hours | 121 |
16.9%
|
| 98 | Dont Know | 20 |
2.8%
|
| Sysmiss | 15058 |