| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15minutes | 3 |
75%
|
| 2 | Less than 30minutes | 0 |
0%
|
| 3 | 1 to 2hrs | 1 |
25%
|
| 4 | More than 2hrs | 0 |
0%
|
| Sysmiss | 3972 |