| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 30 min | 1972 |
32.1%
|
| 2 | More than 30 min; less than an hour | 1379 |
22.4%
|
| 3 | More than an hour | 2694 |
43.8%
|
| 4 | Don't know | 105 |
1.7%
|