| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 min | 1655 |
26.9%
|
| 2 | More than 30 min; less than an hour | 1984 |
32.3%
|
| 3 | More than an hour | 2290 |
37.2%
|
| 4 | Don't know | 221 |
3.6%
|