| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 383 |
29.7%
|
| 2 | 30 - 60 minutes | 672 |
52.2%
|
| 3 | 60 - 90 minutes | 194 |
15.1%
|
| 4 | 90 + minutes | 39 |
3%
|
| Sysmiss | 159 |