| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 156 |
15.6%
|
| 2 | 15 - 30 minutes | 101 |
10.1%
|
| 3 | More than 30 minutes | 33 |
3.3%
|
| 4 | Don't know | 0 |
0%
|
| 8 | Not applicable | 703 |
70.4%
|
| 9 | Unspecified | 5 |
0.5%
|