| Value | Category | Cases | |
|---|---|---|---|
| 1 | Below 5 minutes | 5 |
1.4%
|
| 2 | Between 5-15 minutes | 165 |
45.6%
|
| 3 | Between 15-30 minutes | 137 |
37.8%
|
| 4 | Over 30 minutes | 54 |
14.9%
|
| 5 | Don't know | 1 |
0.3%
|
| Sysmiss | 142 |