| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 1733 |
12.4%
|
| 2 | Between 15 and 30 minutes | 3107 |
22.2%
|
| 3 | Between 31 and 60 minutes | 3923 |
28%
|
| 4 | More than 60 minutes | 5000 |
35.7%
|
| 99 | Don?t know | 231 |
1.7%
|