| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 2069 |
31%
|
| 2 | 6-15 minutes | 723 |
10.8%
|
| 3 | 16-30 minutes | 458 |
6.9%
|
| 4 | 31-60 minutes | 260 |
3.9%
|
| 5 | More than 1 hour | 290 |
4.3%
|
| 6 | Don't know | 2871 |
43%
|