| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 147 |
14.7%
|
| 2 | 15 - 30 minutes | 87 |
8.7%
|
| 3 | More than 30 minutes | 18 |
1.8%
|
| 4 | Don't know | 0 |
0%
|
| 8 | Not applicable | 741 |
74.2%
|
| 9 | Unspecified | 5 |
0.5%
|