| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15min | 2328 |
55.5%
|
| 2 | 15min-30min | 903 |
21.5%
|
| 3 | 30min-60min | 653 |
15.6%
|
| 4 | 1hour-2hours | 258 |
6.1%
|
| 5 | Over 2 hours | 56 |
1.3%
|
| Sysmiss | 2 |