| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes | 116 |
11.6%
|
| 2 | 15-30 minutes | 105 |
10.5%
|
| 3 | More than 30 minutes | 26 |
2.6%
|
| 4 | Do not know | 2 |
0.2%
|
| 8 | Not applicable | 747 |
74.8%
|
| 9 | Unspecified | 2 |
0.2%
|