| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 4917 |
35.1%
|
| 2 | Between 15 and 30 minutes | 5280 |
37.7%
|
| 3 | Between 31 and 60 minutes | 2626 |
18.8%
|
| 4 | More than 60 minutes | 928 |
6.6%
|
| 99 | Don?t know | 243 |
1.7%
|