| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within 5 minutes | 8 |
27.6%
|
| 2 | 6 to 30 minutes | 8 |
27.6%
|
| 3 | 31 to 60 minutes | 3 |
10.3%
|
| 4 | More than 60 minutes | 6 |
20.7%
|
| 9 | Refused | 4 |
13.8%
|
| Sysmiss | 16933 |