| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 minutes | 859 |
46.2%
|
| 2 | Between 30 minutes and 1 hour | 533 |
28.7%
|
| 3 | 1 to 3 hours | 365 |
19.6%
|
| 4 | More than 3 hours | 48 |
2.6%
|
| 99 | Do not know | 53 |
2.9%
|
| Sysmiss | 5 |