| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 46 |
5.7%
|
| 2 | More than 30 minutes, but less than 24 hours | 130 |
16.2%
|
| 3 | More than 24 hours | 525 |
65.5%
|
| 8 | Unknown | 101 |
12.6%
|
| 9 | missing | 23 | |
| Sysmiss | 3338 |