| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0-15 minutes | 1259 |
47.9%
|
| 2 | 15-30 minutes | 771 |
29.3%
|
| 3 | 30-60 minutes | 451 |
17.2%
|
| 4 | More than an hour | 148 |
5.6%
|
| Sysmiss | 9 |