| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 161 |
16.1%
|
| 2 | 15 - 30 minutes | 65 |
6.5%
|
| 3 | More than 30 minutes | 39 |
3.9%
|
| 4 | Don't know | 0 |
0%
|
| 8 | Not applicable | 732 |
73.3%
|
| 9 | Unspecified | 1 |
0.1%
|