| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 5 min | 607 |
64.9%
|
| 2 | 6-15 min | 188 |
20.1%
|
| 3 | 16-30 min | 80 |
8.5%
|
| 4 | 31-60 min | 26 |
2.8%
|
| 5 | more than 1 hour | 35 |
3.7%
|
| Sysmiss | 2663 |